12631383571 has 16 divisors (see below), whose sum is σ = 13590101376. Its totient is φ = 11697054336.

The previous prime is 12631383497. The next prime is 12631383599. The reversal of 12631383571 is 17538313621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12631383571 - 2⁹ = 12631383059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12631383071) 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, 1026960 + ... + 1039186.

It is an arithmetic number, because the mean of its divisors is an integer number (849381336).

Almost surely, 2^12631383571 is an apocalyptic number.

12631383571 is a deficient number, since it is larger than the sum of its proper divisors (958717805).

12631383571 is a wasteful number, since it uses less digits than its factorization.

12631383571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13218.

The product of its digits is 90720, while the sum is 40.

The spelling of 12631383571 in words is "twelve billion, six hundred thirty-one million, three hundred eighty-three thousand, five hundred seventy-one".