23320021100 has 18 divisors (see below), whose sum is σ = 50604446004. Its totient is φ = 9328008400.

The previous prime is 23320021091. The next prime is 23320021163. The reversal of 23320021100 is 112002332.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116600006 + ... + 116600205.

Almost surely, 2^23320021100 is an apocalyptic number.

23320021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23320021100 is an abundant number, since it is smaller than the sum of its proper divisors (27284424904).

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

23320021100 is a wasteful number, since it uses less digits than its factorization.

23320021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233200225 (or 233200218 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23320021100 its reverse (112002332), we get a palindrome (23432023432).

The spelling of 23320021100 in words is "twenty-three billion, three hundred twenty million, twenty-one thousand, one hundred".