231312332031 has 8 divisors (see below), whose sum is σ = 336454301184. Its totient is φ = 140189292120.

The previous prime is 231312332011. The next prime is 231312332033. The reversal of 231312332031 is 130233213132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231312332031 - 2³⁴ = 214132462847 is a prime.

It is a super-2 number, since 2×231312332031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231312331992 and 231312332010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312332033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3504732271 + ... + 3504732336.

It is an arithmetic number, because the mean of its divisors is an integer number (42056787648).

Almost surely, 2^231312332031 is an apocalyptic number.

231312332031 is a deficient number, since it is larger than the sum of its proper divisors (105141969153).

231312332031 is a wasteful number, since it uses less digits than its factorization.

231312332031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009464621.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231312332031 its reverse (130233213132), we get a palindrome (361545545163).

The spelling of 231312332031 in words is "two hundred thirty-one billion, three hundred twelve million, three hundred thirty-two thousand, thirty-one".