23131020332 has 12 divisors (see below), whose sum is σ = 46262040720. Its totient is φ = 9913294416.

The previous prime is 23131020331. The next prime is 23131020361. The reversal of 23131020332 is 23302013132.

23131020332 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (23131020331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413053907 + ... + 413053962.

It is an arithmetic number, because the mean of its divisors is an integer number (3855170060).

Almost surely, 2^23131020332 is an apocalyptic number.

It is an amenable number.

23131020332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23131020332 is a wasteful number, since it uses less digits than its factorization.

23131020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826107880 (or 826107878 counting only the distinct ones).

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

Adding to 23131020332 its reverse (23302013132), we get a palindrome (46433033464).

The spelling of 23131020332 in words is "twenty-three billion, one hundred thirty-one million, twenty thousand, three hundred thirty-two".