31130232023 has 16 divisors (see below), whose sum is σ = 37117854720. Its totient is φ = 25776278400.

The previous prime is 31130232013. The next prime is 31130232059. The reversal of 31130232023 is 32023203113.

It is a cyclic number.

It is not a de Polignac number, because 31130232023 - 2²⁰ = 31129183447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31130231986 and 31130232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130232013) 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, 2679233 + ... + 2690826.

It is an arithmetic number, because the mean of its divisors is an integer number (2319865920).

Almost surely, 2^31130232023 is an apocalyptic number.

31130232023 is a deficient number, since it is larger than the sum of its proper divisors (5987622697).

31130232023 is a wasteful number, since it uses less digits than its factorization.

31130232023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370118.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31130232023 its reverse (32023203113), we get a palindrome (63153435136).

The spelling of 31130232023 in words is "thirty-one billion, one hundred thirty million, two hundred thirty-two thousand, twenty-three".