12313130321 has 4 divisors (see below), whose sum is σ = 12313614144. Its totient is φ = 12312646500.

The previous prime is 12313130303. The next prime is 12313130353. The reversal of 12313130321 is 12303131321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12313130321 is a prime.

It is a super-2 number, since 2×12313130321² (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 = 12313130293 and 12313130302.

It is not an unprimeable number, because it can be changed into a prime (12313130371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201485 + ... + 255386.

It is an arithmetic number, because the mean of its divisors is an integer number (3078403536).

Almost surely, 2^12313130321 is an apocalyptic number.

It is an amenable number.

12313130321 is a deficient number, since it is larger than the sum of its proper divisors (483823).

12313130321 is an equidigital number, since it uses as much as digits as its factorization.

12313130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483822.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12313130321 its reverse (12303131321), we get a palindrome (24616261642).

The spelling of 12313130321 in words is "twelve billion, three hundred thirteen million, one hundred thirty thousand, three hundred twenty-one".