12513756313 has 2 divisors, whose sum is σ = 12513756314. Its totient is φ = 12513756312.

The previous prime is 12513756301. The next prime is 12513756323. The reversal of 12513756313 is 31365731521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12300362649 + 213393664 = 110907^2 + 14608^2 .

It is a cyclic number.

It is not a de Polignac number, because 12513756313 - 2²¹ = 12511659161 is a prime.

It is a super-2 number, since 2×12513756313² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12513756323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256878156 + 6256878157.

It is an arithmetic number, because the mean of its divisors is an integer number (6256878157).

Almost surely, 2^12513756313 is an apocalyptic number.

It is an amenable number.

12513756313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513756313 is an equidigital number, since it uses as much as digits as its factorization.

12513756313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The spelling of 12513756313 in words is "twelve billion, five hundred thirteen million, seven hundred fifty-six thousand, three hundred thirteen".