23203502120 has 64 divisors (see below), whose sum is σ = 52878510720. Its totient is φ = 9162782464.

The previous prime is 23203502083. The next prime is 23203502129. The reversal of 23203502120 is 2120530232.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23203502092 and 23203502101.

It is not an unprimeable number, because it can be changed into a prime (23203502129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1244789 + ... + 1263291.

It is an arithmetic number, because the mean of its divisors is an integer number (826226730).

Almost surely, 2^23203502120 is an apocalyptic number.

23203502120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203502120 is an abundant number, since it is smaller than the sum of its proper divisors (29675008600).

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

23203502120 is a wasteful number, since it uses less digits than its factorization.

23203502120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18914 (or 18910 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The spelling of 23203502120 in words is "twenty-three billion, two hundred three million, five hundred two thousand, one hundred twenty".