13112776013 has 2 divisors, whose sum is σ = 13112776014. Its totient is φ = 13112776012.

The previous prime is 13112776009. The next prime is 13112776043. The reversal of 13112776013 is 31067721131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11506209289 + 1606566724 = 107267^2 + 40082^2 .

It is an emirp because it is prime and its reverse (31067721131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13112776013 - 2² = 13112776009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13112776043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556388006 + 6556388007.

It is an arithmetic number, because the mean of its divisors is an integer number (6556388007).

Almost surely, 2^13112776013 is an apocalyptic number.

It is an amenable number.

13112776013 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112776013 is an equidigital number, since it uses as much as digits as its factorization.

13112776013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The spelling of 13112776013 in words is "thirteen billion, one hundred twelve million, seven hundred seventy-six thousand, thirteen".