12313421513 has 2 divisors, whose sum is σ = 12313421514. Its totient is φ = 12313421512.

The previous prime is 12313421501. The next prime is 12313421543. The reversal of 12313421513 is 31512431321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9651687049 + 2661734464 = 98243^2 + 51592^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313421513 - 2²² = 12309227209 is a prime.

It is a super-2 number, since 2×12313421513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12313421543) 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 as a sum of consecutive naturals, namely, 6156710756 + 6156710757.

It is an arithmetic number, because the mean of its divisors is an integer number (6156710757).

Almost surely, 2^12313421513 is an apocalyptic number.

It is an amenable number.

12313421513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313421513 is an equidigital number, since it uses as much as digits as its factorization.

12313421513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

Adding to 12313421513 its reverse (31512431321), we get a palindrome (43825852834).

The spelling of 12313421513 in words is "twelve billion, three hundred thirteen million, four hundred twenty-one thousand, five hundred thirteen".