12313220131 has 4 divisors (see below), whose sum is σ = 12848577552. Its totient is φ = 11777862712.

The previous prime is 12313220107. The next prime is 12313220137. The reversal of 12313220131 is 13102231321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12313220131 - 2⁵ = 12313220099 is a prime.

It is a super-2 number, since 2×12313220131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12313220099 and 12313220108.

It is not an unprimeable number, because it can be changed into a prime (12313220137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267678676 + ... + 267678721.

It is an arithmetic number, because the mean of its divisors is an integer number (3212144388).

Almost surely, 2^12313220131 is an apocalyptic number.

12313220131 is a deficient number, since it is larger than the sum of its proper divisors (535357421).

12313220131 is an equidigital number, since it uses as much as digits as its factorization.

12313220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535357420.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12313220131 its reverse (13102231321), we get a palindrome (25415451452).

The spelling of 12313220131 in words is "twelve billion, three hundred thirteen million, two hundred twenty thousand, one hundred thirty-one".