12320310313131 has 12 divisors (see below), whose sum is σ = 16837513129656. Its totient is φ = 8013209956480.

The previous prime is 12320310313097. The next prime is 12320310313141. The reversal of 12320310313131 is 13131301302321.

It is not a de Polignac number, because 12320310313131 - 2³⁵ = 12285950574763 is a prime.

It is a super-2 number, since 2×12320310313131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12320310313141) 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, 1221520866 + ... + 1221530951.

It is an arithmetic number, because the mean of its divisors is an integer number (1403126094138).

Almost surely, 2^{12320310313131} is an apocalyptic number.

12320310313131 is a deficient number, since it is larger than the sum of its proper divisors (4517202816525).

12320310313131 is an equidigital number, since it uses as much as digits as its factorization.

12320310313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443051902 (or 2443051861 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 12320310313131 its reverse (13131301302321), we get a palindrome (25451611615452).

The spelling of 12320310313131 in words is "twelve trillion, three hundred twenty billion, three hundred ten million, three hundred thirteen thousand, one hundred thirty-one".