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3131313011001 = 3479756933999
BaseRepresentation
bin101101100100010000110…
…011001011100100111001
3102002100110120212101120000
4231210100303023210321
5402300412112323001
610354301053023213
7442141566301620
oct55442063134471
912070416771500
103131313011001
11aa7a8961a46a
12426a52484b09
13199387746906
14ab7b090c6b7
15566bc9b7a86
hex2d910ccb939

3131313011001 has 40 divisors (see below), whose sum is σ = 5400986976000. Its totient is φ = 1770875073792.

The previous prime is 3131313010957. The next prime is 3131313011033. The reversal of 3131313011001 is 1001103131313.

It is not a de Polignac number, because 3131313011001 - 234 = 3114133141817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131313011201) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28412001 + ... + 28521998.

It is an arithmetic number, because the mean of its divisors is an integer number (135024674400).

Almost surely, 23131313011001 is an apocalyptic number.

It is an amenable number.

3131313011001 is a deficient number, since it is larger than the sum of its proper divisors (2269673964999).

3131313011001 is an equidigital number, since it uses as much as digits as its factorization.

3131313011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56934115 (or 56934106 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 3131313011001 its reverse (1001103131313), we get a palindrome (4132416142314).

The spelling of 3131313011001 in words is "three trillion, one hundred thirty-one billion, three hundred thirteen million, eleven thousand, one".

Divisors: 1 3 7 9 21 27 63 81 97 189 291 567 679 873 2037 2619 6111 7857 18333 54999 56933999 170801997 398537993 512405991 1195613979 1537217973 3586841937 4611653919 5522597903 10760525811 16567793709 32281577433 38658185321 49703381127 115974555963 149110143381 347923667889 447330430143 1043771003667 3131313011001