23310021120 has 160 divisors (see below), whose sum is σ = 74611171008. Its totient is φ = 6208339968.

The previous prime is 23310021113. The next prime is 23310021131. The reversal of 23310021120 is 2112001332.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×23310021120² (a number of 22 digits) contains 22 as substring.

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 23310021120.

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, 9114882 + ... + 9117438.

Almost surely, 2^23310021120 is an apocalyptic number.

23310021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23310021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37305585504).

23310021120 is an abundant number, since it is smaller than the sum of its proper divisors (51301149888).

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

23310021120 is a wasteful number, since it uses less digits than its factorization.

23310021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3754 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23310021120 its reverse (2112001332), we get a palindrome (25422022452).

The spelling of 23310021120 in words is "twenty-three billion, three hundred ten million, twenty-one thousand, one hundred twenty".