23130521020 has 24 divisors (see below), whose sum is σ = 48588645168. Its totient is φ = 9249436800.

The previous prime is 23130520997. The next prime is 23130521027. The reversal of 23130521020 is 2012503132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130521027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104121 + ... + 238960.

It is an arithmetic number, because the mean of its divisors is an integer number (2024526882).

Almost surely, 2^23130521020 is an apocalyptic number.

23130521020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23130521020 is an abundant number, since it is smaller than the sum of its proper divisors (25458124148).

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

23130521020 is a wasteful number, since it uses less digits than its factorization.

23130521020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346461 (or 346459 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The spelling of 23130521020 in words is "twenty-three billion, one hundred thirty million, five hundred twenty-one thousand, twenty".