23320038731 has 4 divisors (see below), whose sum is σ = 25440042264. Its totient is φ = 21200035200.

The previous prime is 23320038727. The next prime is 23320038751. The reversal of 23320038731 is 13783002332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23320038731 - 2² = 23320038727 is a prime.

It is a super-2 number, since 2×23320038731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320038701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060001750 + ... + 1060001771.

It is an arithmetic number, because the mean of its divisors is an integer number (6360010566).

Almost surely, 2^23320038731 is an apocalyptic number.

23320038731 is a deficient number, since it is larger than the sum of its proper divisors (2120003533).

23320038731 is a wasteful number, since it uses less digits than its factorization.

23320038731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120003532.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 23320038731 in words is "twenty-three billion, three hundred twenty million, thirty-eight thousand, seven hundred thirty-one".