12311023222131 has 16 divisors (see below), whose sum is σ = 16787057640960. Its totient is φ = 8023226047200.

The previous prime is 12311023222111. The next prime is 12311023222171. The reversal of 12311023222131 is 13122232011321.

It is not a de Polignac number, because 12311023222131 - 2⁹ = 12311023221619 is a prime.

It is a super-2 number, since 2×12311023222131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12311023222111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257130745 + ... + 257178618.

It is an arithmetic number, because the mean of its divisors is an integer number (1049191102560).

Almost surely, 2^{12311023222131} is an apocalyptic number.

12311023222131 is a deficient number, since it is larger than the sum of its proper divisors (4476034418829).

12311023222131 is a wasteful number, since it uses less digits than its factorization.

12311023222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514309546.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12311023222131 its reverse (13122232011321), we get a palindrome (25433255233452).

The spelling of 12311023222131 in words is "twelve trillion, three hundred eleven billion, twenty-three million, two hundred twenty-two thousand, one hundred thirty-one".