11513031031315 has 32 divisors (see below), whose sum is σ = 15422645120256. Its totient is φ = 8178104376960.

The previous prime is 11513031031297. The next prime is 11513031031379. The reversal of 11513031031315 is 51313013031511.

It is a de Polignac number, because none of the positive numbers 2^k-11513031031315 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86177709 + ... + 86311201.

It is an arithmetic number, because the mean of its divisors is an integer number (481957660008).

Almost surely, 2^{11513031031315} is an apocalyptic number.

11513031031315 is a deficient number, since it is larger than the sum of its proper divisors (3909614088941).

11513031031315 is a wasteful number, since it uses less digits than its factorization.

11513031031315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170019.

The product of its (nonzero) digits is 2025, while the sum is 28.

Adding to 11513031031315 its reverse (51313013031511), we get a palindrome (62826044062826).

The spelling of 11513031031315 in words is "eleven trillion, five hundred thirteen billion, thirty-one million, thirty-one thousand, three hundred fifteen".