1310220311957 has 2 divisors, whose sum is σ = 1310220311958. Its totient is φ = 1310220311956.

The previous prime is 1310220311941. The next prime is 1310220312017. The reversal of 1310220311957 is 7591130220131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013577778756 + 296642533201 = 1006766^2 + 544649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310220311957 - 2⁴ = 1310220311941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310220311557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655110155978 + 655110155979.

It is an arithmetic number, because the mean of its divisors is an integer number (655110155979).

Almost surely, 2^{1310220311957} is an apocalyptic number.

It is an amenable number.

1310220311957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310220311957 is an equidigital number, since it uses as much as digits as its factorization.

1310220311957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 1310220311957 in words is "one trillion, three hundred ten billion, two hundred twenty million, three hundred eleven thousand, nine hundred fifty-seven".