100,000,000,000

100,000,000,000 (one hundred billion) is the natural number following 99,999,999,999 and preceding 100,000,000,001.

100000000000
List of numbers Integers ← 100 101 102 103 104 105 106 107 108 109 1010 1011
Cardinal	One hundred billion
Ordinal	One hundred billionth (short scale)
Factorization	211 511
Greek numeral	${\displaystyle {\stackrel {\alpha }{\mathrm {M} }}}$
Roman numeral	X
Binary	10111010010000111011011101000000000002
Ternary	1001200100111221000202013
Senary	1135345230145446
Octal	13510355640008
Duodecimal	1746996A45412
Hexadecimal	174876E80016

In scientific notation, it is written as 10¹¹.

Selected 12-digit numbers (100,000,000,001–999,999,999,999)

100,000,000,001 to 199,999,999,999

• 100,000,000,003 = smallest 12-digit prime number.^[1]
• 100,000,147,984 = 316228², the smallest 12-digit square.
• 100,000,404,505 = smallest triangular number with 12 digits and the 447,214th triangular number
• 102,280,151,422 = number of 43-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed^[2]
• 107,578,520,350 = 30th Pell number.^[3]
• 109,972,410,221 = number of trees with 32 unlabeled nodes^[4]
• 111,111,111,111 = repunit
• 118,587,876,497 = 4913³ = 17⁹
• 127,004,500,762 = number of parallelogram polyominoes with 32 cells.^[5]
• 128,367,472,469 = Markov prime
• 134,474,581,374 = number of secondary structures of RNA molecules with 32 nucleotides^[6]
• 137,438,691,328 = 7th perfect number.^[7]
• 137,438,953,472 = 2³⁷
• 137,858,491,849 = 371293² = 169⁵ = 13¹⁰
• 139,355,139,206 = number of signed trees with 20 nodes^[8]
• 139,583,862,445 = 55th Fibonacci number.
• 143,367,113,573 = Markov prime
• 145,540,468,640 = number of series-reduced planted trees with 42 nodes^[9]
• 152,587,890,625 = 390625² = 625⁴ = 25⁸ = 5¹⁶
• 168,047,007,728 = number of free 23-ominoes
• 172,765,826,641 = Markov prime
• 186,492,227,801 = self-descriptive number in base 11
• 195,470,831,356 = number of 45-bead necklaces (turning over is allowed) where complements are equivalent^[10]
• 198,359,290,368 = 5832³ = 18⁹
• 198,585,576,189 = only known Descartes number
• 199,911,300,472 = number of 44-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed^[2]

200,000,000,000 to 299,999,999,999

• 200,560,490,130 = eleventh primorial
• 208,023,278,209 = 28th Motzkin number.^[11]
• 222,222,222,222 = repdigit
• 225,851,433,717 = 56th Fibonacci number.
• 247,489,226,192 = number of centered hydrocarbons with 35 carbon atoms^[12]
• 252,097,800,623 = 10,000,000,000th prime number
• 255,323,504,932 = logarithmic number.^[13]
• 259,717,522,849 = 31st Pell number.^[3]
• 274,877,906,944 = 524288² = 4¹⁹ = 2³⁸
• 277,945,762,500 = 2²×3³×5⁵×7^7[14]
• 282,429,536,481 = 531441² = 6561³ = 729⁴ = 81⁶ = 27⁸ = 9¹² = 3²⁴
• 285,311,670,611 = 11¹¹
• 289,254,654,976 = 537824² = 196⁵ = 14¹⁰
• 293,270,987,832 = number of parallelogram polyominoes with 33 cells.^[5]

300,000,000,000 to 399,999,999,999

• 300,628,862,480 = number of trees with 33 unlabeled nodes^[4]
• 307,272,063,019 = number of series-reduced planted trees with 43 nodes^[9]
• 308,457,624,821 = number of prime numbers having thirteen digits^[15]
• 311,809,494,089 = Markov prime
• 316,234,143,225 = double factorial of 23
• 321,253,732,800 = superior highly composite number^[16]
• 322,687,697,779 = 6859³ = 19⁹
• 333,333,333,333 = repdigit made of 3s
• 336,908,488,839 = number of secondary structures of RNA molecules with 33 nucleotides^[6]
• 343,059,613,650 = Catalan number^[17]
• 346,065,536,839 = number of primes under 10¹³
• 365,435,296,162 = 57th Fibonacci number.
• 382,443,112,538 = number of 46-bead necklaces (turning over is allowed) where complements are equivalent^[10]
• 390,937,468,408 = number of 45-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed^[2]

400,000,000,000 to 499,999,999,999

• 444,444,444,444 = repdigit
• 470,184,984,576 = 7776³ = 216⁵ = 6¹⁵

500,000,000,000 to 599,999,999,999

• 500,000,500,000 = sum of first 1,000,000 integers
• 512,000,000,000 = 8000³ = 20⁹
• 549,755,813,888 = 8192³ = 8¹³ = 2³⁹
• 555,555,555,555 = repdigit
• 576,650,390,625 = 759375² = 225⁵ = 15¹⁰
• 591,286,729,879 = 58th Fibonacci number.
• 593,742,784,829 = 29th Motzkin number.^[11]

600,000,000,000 to 699,999,999,999

• 608,981,813,029 = smallest number for which there are more primes up to the number of the form 3k + 1 than of the form 3k + 2.
• 619,737,131,179 = largest number such that every pair of consecutive digits is a distinct prime.
• 627,013,566,048 = 32nd Pell number.^[3]
• 649,164,795,179 = number of centered hydrocarbons with 36 carbon atoms^[12]
• 649,287,537,982 = number of series-reduced planted trees with 44 nodes^[9]
• 654,999,700,403 = number of free 24-ominoes
• 666,666,666,666 = repdigit
• 677,203,347,266 = number of parallelogram polyominoes with 34 cells.^[5]
• 678,223,072,849 = 823543² = 49⁷ = 7¹⁴
• 682,076,806,159 = 18th Bell number.^[18]
• 695,808,554,300 = number of signed trees with 21 nodes^[8]

700,000,000,000 to 799,999,999,999

• 743,008,370,688 = 12¹¹
• 748,607,855,769 = number of 47-bead necklaces (turning over is allowed) where complements are equivalent^[10]
• 762,939,453,125 = 5¹⁷
• 764,877,836,468 = number of 46-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed^[2]
• 777,777,777,777 = repdigit

800,000,000,000 to 899,999,999,999

• 823,779,631,721 = number of trees with 34 unlabeled nodes^[4]
• 845,139,060,165 = number of secondary structures of RNA molecules with 34 nucleotides^[6]
• 847,288,609,443 = 243⁵ = 3²⁵
• 888,888,888,888 = repdigit

900,000,000,000 to 999,999,999,999

• 918,212,890,625 = 1-automorphic number^[19]
• 956,722,026,041 = 59th Fibonacci number.
• 999,999,999,989 = largest 12-digit prime number^[20]
• 999,999,999,999 = largest 12-digit number, repdigit