23631272313 has 16 divisors (see below), whose sum is σ = 34526908416. Its totient is φ = 14257754640.

The previous prime is 23631272281. The next prime is 23631272321. The reversal of 23631272313 is 31327213632.

It is not a de Polignac number, because 23631272313 - 2⁵ = 23631272281 is a prime.

It is a super-2 number, since 2×23631272313² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23631272323) 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, 1598245 + ... + 1612962.

It is an arithmetic number, because the mean of its divisors is an integer number (2157931776).

Almost surely, 2^23631272313 is an apocalyptic number.

It is an amenable number.

23631272313 is a deficient number, since it is larger than the sum of its proper divisors (10895636103).

23631272313 is a wasteful number, since it uses less digits than its factorization.

23631272313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211444.

The product of its digits is 27216, while the sum is 33.

Adding to 23631272313 its reverse (31327213632), we get a palindrome (54958485945).

The spelling of 23631272313 in words is "twenty-three billion, six hundred thirty-one million, two hundred seventy-two thousand, three hundred thirteen".