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31113100131113 = 7111371555778779
BaseRepresentation
bin1110001001100000101010…
…10001111111101100101001
311002011101100102222010202002
413010300111101333230221
513034224112113143423
6150101054430020345
76360563424400640
oct704602521775451
9132141312863662
1031113100131113
119a05a9a9a8490
1235a5b163476b5
131448c502775a0
14797c4c606357
1538e4ca8aa228
hex1c4c1547fb29

31113100131113 has 64 divisors (see below), whose sum is σ = 42370762936320. Its totient is φ = 22059604627200.

The previous prime is 31113100131083. The next prime is 31113100131173.

It is a happy number.

31113100131113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31113100131113 - 28 = 31113100130857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31113100131173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394902158 + ... + 394980936.

It is an arithmetic number, because the mean of its divisors is an integer number (662043170880).

Almost surely, 231113100131113 is an apocalyptic number.

It is an amenable number.

31113100131113 is a deficient number, since it is larger than the sum of its proper divisors (11257662805207).

31113100131113 is a wasteful number, since it uses less digits than its factorization.

31113100131113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84438.

The product of its (nonzero) digits is 81, while the sum is 20.

It can be divided in two parts, 31113100 and 131113, that added together give a palindrome (31244213).

The spelling of 31113100131113 in words is "thirty-one trillion, one hundred thirteen billion, one hundred million, one hundred thirty-one thousand, one hundred thirteen".

Divisors: 1 7 11 13 71 77 91 143 497 781 923 1001 5467 5557 6461 10153 38899 61127 71071 72241 78779 394547 427889 505687 551453 794651 866569 1024127 2761829 4340017 5129111 5562557 5593309 6065983 7168889 11265397 30380119 35903777 39153163 56420221 61526399 72713017 78857779 394941547 430684793 437774903 508991119 799843187 3064424321 4815523933 5598902309 5691073739 31082018113 33708667531 39837516173 62601811129 217574126791 341902199243 404066235469 438212677903 2393315394701 2828463648283 4444728590159 31113100131113