23020012320 has 96 divisors (see below), whose sum is σ = 72536083200. Its totient is φ = 6136719360.

The previous prime is 23020012303. The next prime is 23020012321. The reversal of 23020012320 is 2321002032.

It is a tau number, because it is divible by the number of its divisors (96).

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 23020012320.

It is not an unprimeable number, because it can be changed into a prime (23020012321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2126281 + ... + 2137079.

It is an arithmetic number, because the mean of its divisors is an integer number (755584200).

Almost surely, 2^23020012320 is an apocalyptic number.

23020012320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23020012320 is an abundant number, since it is smaller than the sum of its proper divisors (49516070880).

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

23020012320 is a wasteful number, since it uses less digits than its factorization.

23020012320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15258 (or 15250 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23020012320 its reverse (2321002032), we get a palindrome (25341014352).

The spelling of 23020012320 in words is "twenty-three billion, twenty million, twelve thousand, three hundred twenty".