1313038962689 has 2 divisors, whose sum is σ = 1313038962690. Its totient is φ = 1313038962688.

The previous prime is 1313038962659. The next prime is 1313038962757. The reversal of 1313038962689 is 9862698303131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 774781967089 + 538256995600 = 880217^2 + 733660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313038962689 - 2³² = 1308743995393 is a prime.

It is a super-2 number, since 2×1313038962689² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1313038962649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656519481344 + 656519481345.

It is an arithmetic number, because the mean of its divisors is an integer number (656519481345).

Almost surely, 2^{1313038962689} is an apocalyptic number.

It is an amenable number.

1313038962689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313038962689 is an equidigital number, since it uses as much as digits as its factorization.

1313038962689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 1313038962689 in words is "one trillion, three hundred thirteen billion, thirty-eight million, nine hundred sixty-two thousand, six hundred eighty-nine".