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131012111331100 = 22526473037666749
BaseRepresentation
bin11101110010011110100010…
…010110110110111100011100
3122011212122011022001002011101
4131302132202112312330130
5114133000301000043400
61142350044424202444
736411212152111636
oct3562364226667434
9564778138032141
10131012111331100
1138820a1940546a
121283b037009424
135814509a9571c
14244d03cd23a56
151022dd422256a
hex7727a25b6f1c

131012111331100 has 72 divisors (see below), whose sum is σ = 284829871284000. Its totient is φ = 52306540619520.

The previous prime is 131012111331083. The next prime is 131012111331107. The reversal of 131012111331100 is 1133111210131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012111331107) 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, 196160526 + ... + 196827274.

It is an arithmetic number, because the mean of its divisors is an integer number (3955970434500).

Almost surely, 2131012111331100 is an apocalyptic number.

131012111331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012111331100 is an abundant number, since it is smaller than the sum of its proper divisors (153817759952900).

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

131012111331100 is a wasteful number, since it uses less digits than its factorization.

131012111331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670447 (or 670440 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 131012111331100 its reverse (1133111210131), we get a palindrome (132145222541231).

The spelling of 131012111331100 in words is "one hundred thirty-one trillion, twelve billion, one hundred eleven million, three hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 647 1294 2588 3037 3235 6074 6470 12148 12940 15185 16175 30370 32350 60740 64700 75925 151850 303700 666749 1333498 1964939 2666996 3333745 3929878 6667490 7859756 9824695 13334980 16668725 19649390 33337450 39298780 49123475 66674900 98246950 196493900 431386603 862773206 1725546412 2024916713 2156933015 4049833426 4313866030 8099666852 8627732060 10124583565 10784665075 20249167130 21569330150 40498334260 43138660300 50622917825 101245835650 202491671300 1310121113311 2620242226622 5240484453244 6550605566555 13101211133110 26202422266220 32753027832775 65506055665550 131012111331100