1313137612789 has 2 divisors, whose sum is σ = 1313137612790. Its totient is φ = 1313137612788.

The previous prime is 1313137612783. The next prime is 1313137612819. The reversal of 1313137612789 is 9872167313131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 800720728900 + 512416883889 = 894830^2 + 715833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313137612789 - 2⁵ = 1313137612757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313137612783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656568806394 + 656568806395.

It is an arithmetic number, because the mean of its divisors is an integer number (656568806395).

Almost surely, 2^{1313137612789} is an apocalyptic number.

It is an amenable number.

1313137612789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313137612789 is an equidigital number, since it uses as much as digits as its factorization.

1313137612789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 52.

The spelling of 1313137612789 in words is "one trillion, three hundred thirteen billion, one hundred thirty-seven million, six hundred twelve thousand, seven hundred eighty-nine".