23312020 has 24 divisors (see below), whose sum is σ = 50095584. Its totient is φ = 9107616.

The previous prime is 23312017. The next prime is 23312053. The reversal of 23312020 is 2021332.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12694 + ... + 14413.

It is an arithmetic number, because the mean of its divisors is an integer number (2087316).

Almost surely, 2^23312020 is an apocalyptic number.

23312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23312020 is an abundant number, since it is smaller than the sum of its proper divisors (26783564).

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

23312020 is a wasteful number, since it uses less digits than its factorization.

23312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27159 (or 27157 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23312020 is about 4828.2522717853. The cubic root of 23312020 is about 285.6669309613. Note that the first 3 decimals are identical.

Adding to 23312020 its reverse (2021332), we get a palindrome (25333352).

The spelling of 23312020 in words is "twenty-three million, three hundred twelve thousand, twenty".