31013323320231 has 192 divisors, whose sum is σ = 56871747993600. Its totient is φ = 16606931040000.

The previous prime is 31013323320229. The next prime is 31013323320263. The reversal of 31013323320231 is 13202332331013.

31013323320231 is a `hidden beast` number, since 3 + 1 + 0 + 1 + 332 + 3 + 320 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 31013323320231 - 2¹ = 31013323320229 is a prime.

It is a super-2 number, since 2×31013323320231² (a number of 28 digits) contains 22 as substring.

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 = 31013323320195 and 31013323320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013323320271) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2922196081 + ... + 2922206693.

It is an arithmetic number, because the mean of its divisors is an integer number (296207020800).

Almost surely, 2^{31013323320231} is an apocalyptic number.

31013323320231 is a deficient number, since it is larger than the sum of its proper divisors (25858424673369).

31013323320231 is a wasteful number, since it uses less digits than its factorization.

31013323320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907 (or 11894 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 31013323320231 its reverse (13202332331013), we get a palindrome (44215655651244).

The spelling of 31013323320231 in words is "thirty-one trillion, thirteen billion, three hundred twenty-three million, three hundred twenty thousand, two hundred thirty-one".