23110120500 has 48 divisors (see below), whose sum is σ = 67296675264. Its totient is φ = 6162698400.

The previous prime is 23110120447. The next prime is 23110120511. The reversal of 23110120500 is 502101132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23110120500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7701874 + ... + 7704873.

It is an arithmetic number, because the mean of its divisors is an integer number (1402014068).

Almost surely, 2^23110120500 is an apocalyptic number.

23110120500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23110120500 is an abundant number, since it is smaller than the sum of its proper divisors (44186554764).

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

23110120500 is a wasteful number, since it uses less digits than its factorization.

23110120500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15406769 (or 15406757 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 23110120500 its reverse (502101132), we get a palindrome (23612221632).

The spelling of 23110120500 in words is "twenty-three billion, one hundred ten million, one hundred twenty thousand, five hundred".