23990401171 has 16 divisors (see below), whose sum is σ = 26784564480. Its totient is φ = 21303154080.

The previous prime is 23990401159. The next prime is 23990401189. The reversal of 23990401171 is 17110409932.

It is a cyclic number.

It is not a de Polignac number, because 23990401171 - 2²³ = 23982012563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23990401171.

It is not an unprimeable number, because it can be changed into a prime (23990401121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15831 + ... + 219616.

It is an arithmetic number, because the mean of its divisors is an integer number (1674035280).

Almost surely, 2^23990401171 is an apocalyptic number.

23990401171 is a deficient number, since it is larger than the sum of its proper divisors (2794163309).

23990401171 is a wasteful number, since it uses less digits than its factorization.

23990401171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235674.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 23990401171 in words is "twenty-three billion, nine hundred ninety million, four hundred one thousand, one hundred seventy-one".