23866988031 has 24 divisors (see below), whose sum is σ = 35320600224. Its totient is φ = 15525457920.

The previous prime is 23866988029. The next prime is 23866988069. The reversal of 23866988031 is 13088966832.

It is a happy number.

It is not a de Polignac number, because 23866988031 - 2¹ = 23866988029 is a prime.

It is a super-2 number, since 2×23866988031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23866988531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130546 + ... + 254511.

It is an arithmetic number, because the mean of its divisors is an integer number (1471691676).

Almost surely, 2^23866988031 is an apocalyptic number.

23866988031 is a deficient number, since it is larger than the sum of its proper divisors (11453612193).

23866988031 is a wasteful number, since it uses less digits than its factorization.

23866988031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385231 (or 385228 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 23866988031 in words is "twenty-three billion, eight hundred sixty-six million, nine hundred eighty-eight thousand, thirty-one".