13117255771631 has 16 divisors (see below), whose sum is σ = 14805791483040. Its totient is φ = 11511541870080.

The previous prime is 13117255771597. The next prime is 13117255771637. The reversal of 13117255771631 is 13617755271131.

It is a cyclic number.

It is not a de Polignac number, because 13117255771631 - 2¹⁰ = 13117255770607 is a prime.

It is a super-2 number, since 2×13117255771631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13117255771631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13117255771637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1829846 + ... + 5439011.

It is an arithmetic number, because the mean of its divisors is an integer number (925361967690).

Almost surely, 2^{13117255771631} is an apocalyptic number.

13117255771631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13117255771631 is a deficient number, since it is larger than the sum of its proper divisors (1688535711409).

13117255771631 is a wasteful number, since it uses less digits than its factorization.

13117255771631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274554.

The product of its digits is 926100, while the sum is 50.

The spelling of 13117255771631 in words is "thirteen trillion, one hundred seventeen billion, two hundred fifty-five million, seven hundred seventy-one thousand, six hundred thirty-one".