231313010031 has 48 divisors (see below), whose sum is σ = 363847511040. Its totient is φ = 141068926080.

The previous prime is 231313010029. The next prime is 231313010051. The reversal of 231313010031 is 130010313132.

It is a happy number.

It is not a de Polignac number, because 231313010031 - 2¹ = 231313010029 is a prime.

It is a super-2 number, since 2×231313010031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231313009986 and 231313010013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231313010021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2374816 + ... + 2470298.

It is an arithmetic number, because the mean of its divisors is an integer number (7580156480).

Almost surely, 2^231313010031 is an apocalyptic number.

231313010031 is a deficient number, since it is larger than the sum of its proper divisors (132534501009).

231313010031 is a wasteful number, since it uses less digits than its factorization.

231313010031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95996 (or 95993 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 231313010031 its reverse (130010313132), we get a palindrome (361323323163).

The spelling of 231313010031 in words is "two hundred thirty-one billion, three hundred thirteen million, ten thousand, thirty-one".