1313044243337 has 2 divisors, whose sum is σ = 1313044243338. Its totient is φ = 1313044243336.

The previous prime is 1313044243321. The next prime is 1313044243451. The reversal of 1313044243337 is 7333424403131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161083831296 + 151960412041 = 1077536^2 + 389821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313044243337 - 2⁴ = 1313044243321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313044243337.

It is not a weakly prime, because it can be changed into another prime (1313044246337) 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, 656522121668 + 656522121669.

It is an arithmetic number, because the mean of its divisors is an integer number (656522121669).

Almost surely, 2^{1313044243337} is an apocalyptic number.

It is an amenable number.

1313044243337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313044243337 is an equidigital number, since it uses as much as digits as its factorization.

1313044243337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 38.

Adding to 1313044243337 its reverse (7333424403131), we get a palindrome (8646468646468).

The spelling of 1313044243337 in words is "one trillion, three hundred thirteen billion, forty-four million, two hundred forty-three thousand, three hundred thirty-seven".