23751106920 has 48 divisors (see below), whose sum is σ = 77191098660. Its totient is φ = 6333628416.

The previous prime is 23751106919. The next prime is 23751106927. The reversal of 23751106920 is 2960115732.

It can be written as a sum of positive squares in 2 ways, for example, as 19348253604 + 4402853316 = 139098^2 + 66354^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23751106927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32987289 + ... + 32988008.

Almost surely, 2^23751106920 is an apocalyptic number.

23751106920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23751106920 is an abundant number, since it is smaller than the sum of its proper divisors (53439991740).

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

23751106920 is a wasteful number, since it uses less digits than its factorization.

23751106920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65975314 (or 65975307 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 23751106920 in words is "twenty-three billion, seven hundred fifty-one million, one hundred six thousand, nine hundred twenty".