12313132431 has 32 divisors (see below), whose sum is σ = 17490190080. Its totient is φ = 7694072064.

The previous prime is 12313132393. The next prime is 12313132511. The reversal of 12313132431 is 13423131321.

12313132431 = 149² + 150² + ... + 3330².

It is not a de Polignac number, because 12313132431 - 2⁶ = 12313132367 is a prime.

It is a super-2 number, since 2×12313132431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313132031) 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, 330760 + ... + 366098.

It is an arithmetic number, because the mean of its divisors is an integer number (546568440).

Almost surely, 2^12313132431 is an apocalyptic number.

12313132431 is a deficient number, since it is larger than the sum of its proper divisors (5177057649).

12313132431 is a wasteful number, since it uses less digits than its factorization.

12313132431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35495.

The product of its digits is 1296, while the sum is 24.

Adding to 12313132431 its reverse (13423131321), we get a palindrome (25736263752).

The spelling of 12313132431 in words is "twelve billion, three hundred thirteen million, one hundred thirty-two thousand, four hundred thirty-one".