23021011320 has 32 divisors (see below), whose sum is σ = 69063034320. Its totient is φ = 6138936320.

The previous prime is 23021011319. The next prime is 23021011327. The reversal of 23021011320 is 2311012032.

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 23021011320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021011327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95920761 + ... + 95921000.

Almost surely, 2^23021011320 is an apocalyptic number.

23021011320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23021011320 is an abundant number, since it is smaller than the sum of its proper divisors (46042023000).

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

23021011320 is a wasteful number, since it uses less digits than its factorization.

23021011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191841775 (or 191841771 counting only the distinct ones).

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

Adding to 23021011320 its reverse (2311012032), we get a palindrome (25332023352).

The spelling of 23021011320 in words is "twenty-three billion, twenty-one million, eleven thousand, three hundred twenty".