11310023231 has 16 divisors (see below), whose sum is σ = 12399156000. Its totient is φ = 10252558848.

The previous prime is 11310023209. The next prime is 11310023251. The reversal of 11310023231 is 13232001311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11310023231 is a prime.

It is a super-2 number, since 2×11310023231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11310023251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797555 + ... + 811611.

It is an arithmetic number, because the mean of its divisors is an integer number (774947250).

Almost surely, 2^11310023231 is an apocalyptic number.

11310023231 is a deficient number, since it is larger than the sum of its proper divisors (1089132769).

11310023231 is a wasteful number, since it uses less digits than its factorization.

11310023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15178.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11310023231 its reverse (13232001311), we get a palindrome (24542024542).

The spelling of 11310023231 in words is "eleven billion, three hundred ten million, twenty-three thousand, two hundred thirty-one".