12122323131 has 16 divisors (see below), whose sum is σ = 16207326720. Its totient is φ = 8059460640.

The previous prime is 12122323117. The next prime is 12122323153. The reversal of 12122323131 is 13132322121.

It is not a de Polignac number, because 12122323131 - 2⁵ = 12122323099 is a prime.

It is a super-2 number, since 2×12122323131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12122323098 and 12122323107.

It is not an unprimeable number, because it can be changed into a prime (12122323181) 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, 2854896 + ... + 2859138.

It is an arithmetic number, because the mean of its divisors is an integer number (1012957920).

Almost surely, 2^12122323131 is an apocalyptic number.

12122323131 is a deficient number, since it is larger than the sum of its proper divisors (4085003589).

12122323131 is a wasteful number, since it uses less digits than its factorization.

12122323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626.

The product of its digits is 432, while the sum is 21.

Adding to 12122323131 its reverse (13132322121), we get a palindrome (25254645252).

The spelling of 12122323131 in words is "twelve billion, one hundred twenty-two million, three hundred twenty-three thousand, one hundred thirty-one".