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12311300100 = 22352113730697
BaseRepresentation
bin10110111011100111…
…11000100000000100
31011202222212211210210
423131303320200010
5200203143100400
65353345515420
7614041216131
oct133563704004
934688784723
1012311300100
115248453a90
122477042b70
1312127bab78
1484b0d3588
154c0c62950
hex2ddcf8804

12311300100 has 72 divisors (see below), whose sum is σ = 38858950368. Its totient is φ = 2984556800.

The previous prime is 12311300083. The next prime is 12311300107. The reversal of 12311300100 is 100311321.

It is a super-2 number, since 2×123113001002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12311300107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1862049 + ... + 1868648.

It is an arithmetic number, because the mean of its divisors is an integer number (539707644).

Almost surely, 212311300100 is an apocalyptic number.

12311300100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311300100 is an abundant number, since it is smaller than the sum of its proper divisors (26547650268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311300100 is a wasteful number, since it uses less digits than its factorization.

12311300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730725 (or 3730718 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 12311300100 its reverse (100311321), we get a palindrome (12411611421).

The spelling of 12311300100 in words is "twelve billion, three hundred eleven million, three hundred thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 150 165 220 275 300 330 550 660 825 1100 1650 3300 3730697 7461394 11192091 14922788 18653485 22384182 37306970 41037667 44768364 55960455 74613940 82075334 93267425 111920910 123113001 164150668 186534850 205188335 223841820 246226002 279802275 373069700 410376670 492452004 559604550 615565005 820753340 1025941675 1119209100 1231130010 2051883350 2462260020 3077825025 4103766700 6155650050 12311300100