23013205120 has 32 divisors (see below), whose sum is σ = 55015945020. Its totient is φ = 9205281792.

The previous prime is 23013205097. The next prime is 23013205147. The reversal of 23013205120 is 2150231032.

It can be written as a sum of positive squares in 2 ways, for example, as 21323008576 + 1690196544 = 146024^2 + 41112^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17978427 + ... + 17979706.

Almost surely, 2^23013205120 is an apocalyptic number.

23013205120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23013205120 is an abundant number, since it is smaller than the sum of its proper divisors (32002739900).

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

23013205120 is an equidigital number, since it uses as much as digits as its factorization.

23013205120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35958152 (or 35958140 counting only the distinct ones).

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

Adding to 23013205120 its reverse (2150231032), we get a palindrome (25163436152).

The spelling of 23013205120 in words is "twenty-three billion, thirteen million, two hundred five thousand, one hundred twenty".