10131312123 has 12 divisors (see below), whose sum is σ = 14639535040. Its totient is φ = 6751707696.

The previous prime is 10131312119. The next prime is 10131312133. The reversal of 10131312123 is 32121313101.

It is not a de Polignac number, because 10131312123 - 2² = 10131312119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10131312096 and 10131312105.

It is not an unprimeable number, because it can be changed into a prime (10131312133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182536 + ... + 231477.

Almost surely, 2^10131312123 is an apocalyptic number.

10131312123 is a deficient number, since it is larger than the sum of its proper divisors (4508222917).

10131312123 is a wasteful number, since it uses less digits than its factorization.

10131312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416738 (or 416735 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10131312123 its reverse (32121313101), we get a palindrome (42252625224).

The spelling of 10131312123 in words is "ten billion, one hundred thirty-one million, three hundred twelve thousand, one hundred twenty-three".