23663308431 has 32 divisors (see below), whose sum is σ = 37896929280. Its totient is φ = 12840895584.

The previous prime is 23663308421. The next prime is 23663308439. The reversal of 23663308431 is 13480336632.

It is a happy number.

It is not a de Polignac number, because 23663308431 - 2⁶ = 23663308367 is a prime.

It is a super-2 number, since 2×23663308431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23663308431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23663308439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109095 + ... + 243368.

It is an arithmetic number, because the mean of its divisors is an integer number (1184279040).

Almost surely, 2^23663308431 is an apocalyptic number.

23663308431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23663308431 is a deficient number, since it is larger than the sum of its proper divisors (14233620849).

23663308431 is a wasteful number, since it uses less digits than its factorization.

23663308431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352635.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 23663308431 in words is "twenty-three billion, six hundred sixty-three million, three hundred eight thousand, four hundred thirty-one".