23309520320 has 28 divisors (see below), whose sum is σ = 55505796024. Its totient is φ = 9323808000.

The previous prime is 23309520319. The next prime is 23309520383. The reversal of 23309520320 is 2302590332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36420806 + ... + 36421445.

It is an arithmetic number, because the mean of its divisors is an integer number (1982349858).

Almost surely, 2^23309520320 is an apocalyptic number.

23309520320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23309520320 is an abundant number, since it is smaller than the sum of its proper divisors (32196275704).

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

23309520320 is an equidigital number, since it uses as much as digits as its factorization.

23309520320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72842268 (or 72842258 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The spelling of 23309520320 in words is "twenty-three billion, three hundred nine million, five hundred twenty thousand, three hundred twenty".