23653635631 has 2 divisors, whose sum is σ = 23653635632. Its totient is φ = 23653635630.

The previous prime is 23653635623. The next prime is 23653635637. The reversal of 23653635631 is 13653635632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23653635631 - 2³ = 23653635623 is a prime.

It is a super-2 number, since 2×23653635631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23653635637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11826817815 + 11826817816.

It is an arithmetic number, because the mean of its divisors is an integer number (11826817816).

Almost surely, 2^23653635631 is an apocalyptic number.

23653635631 is a deficient number, since it is larger than the sum of its proper divisors (1).

23653635631 is an equidigital number, since it uses as much as digits as its factorization.

23653635631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 43.

Subtracting from 23653635631 its reverse (13653635632), we obtain a palindrome (9999999999).

The spelling of 23653635631 in words is "twenty-three billion, six hundred fifty-three million, six hundred thirty-five thousand, six hundred thirty-one".