23031232320 has 56 divisors (see below), whose sum is σ = 73124165664. Its totient is φ = 6141661696.

The previous prime is 23031232297. The next prime is 23031232331. The reversal of 23031232320 is 2323213032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11994474 + ... + 11996393.

Almost surely, 2^23031232320 is an apocalyptic number.

23031232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23031232320 is an abundant number, since it is smaller than the sum of its proper divisors (50092933344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23031232320 is a wasteful number, since it uses less digits than its factorization.

23031232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23990887 (or 23990877 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23031232320 its reverse (2323213032), we get a palindrome (25354445352).

The spelling of 23031232320 in words is "twenty-three billion, thirty-one million, two hundred thirty-two thousand, three hundred twenty".