31013641233 has 32 divisors (see below), whose sum is σ = 48508137600. Its totient is φ = 19529330688.

The previous prime is 31013641199. The next prime is 31013641261. The reversal of 31013641233 is 33214631013.

31013641233 is a `hidden beast` number, since 3 + 1 + 0 + 13 + 641 + 2 + 3 + 3 = 666.

It is not a de Polignac number, because 31013641233 - 2²⁰ = 31012592657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31013641197 and 31013641206.

It is not an unprimeable number, because it can be changed into a prime (31013641133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83185 + ... + 262577.

It is an arithmetic number, because the mean of its divisors is an integer number (1515879300).

Almost surely, 2^31013641233 is an apocalyptic number.

It is an amenable number.

31013641233 is a deficient number, since it is larger than the sum of its proper divisors (17494496367).

31013641233 is a wasteful number, since it uses less digits than its factorization.

31013641233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179758 (or 179752 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The spelling of 31013641233 in words is "thirty-one billion, thirteen million, six hundred forty-one thousand, two hundred thirty-three".