1313724118937 has 2 divisors, whose sum is σ = 1313724118938. Its totient is φ = 1313724118936.

The previous prime is 1313724118913. The next prime is 1313724118951. The reversal of 1313724118937 is 7398114273131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313141813776 + 582305161 = 1145924^2 + 24131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313724118937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313724118907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656862059468 + 656862059469.

It is an arithmetic number, because the mean of its divisors is an integer number (656862059469).

Almost surely, 2^{1313724118937} is an apocalyptic number.

It is an amenable number.

1313724118937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313724118937 is an equidigital number, since it uses as much as digits as its factorization.

1313724118937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 50.

The spelling of 1313724118937 in words is "one trillion, three hundred thirteen billion, seven hundred twenty-four million, one hundred eighteen thousand, nine hundred thirty-seven".