1313297815717 has 2 divisors, whose sum is σ = 1313297815718. Its totient is φ = 1313297815716.

The previous prime is 1313297815703. The next prime is 1313297815751. The reversal of 1313297815717 is 7175187923131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1303979002561 + 9318813156 = 1141919^2 + 96534^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313297815717 - 2⁷ = 1313297815589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313297825717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656648907858 + 656648907859.

It is an arithmetic number, because the mean of its divisors is an integer number (656648907859).

Almost surely, 2^{1313297815717} is an apocalyptic number.

It is an amenable number.

1313297815717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313297815717 is an equidigital number, since it uses as much as digits as its factorization.

1313297815717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 55.

The spelling of 1313297815717 in words is "one trillion, three hundred thirteen billion, two hundred ninety-seven million, eight hundred fifteen thousand, seven hundred seventeen".