1310397910873 has 2 divisors, whose sum is σ = 1310397910874. Its totient is φ = 1310397910872.

The previous prime is 1310397910847. The next prime is 1310397910879. The reversal of 1310397910873 is 3780197930131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075020596224 + 235377314649 = 1036832^2 + 485157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310397910873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310397910873.

It is not a weakly prime, because it can be changed into another prime (1310397910879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655198955436 + 655198955437.

It is an arithmetic number, because the mean of its divisors is an integer number (655198955437).

Almost surely, 2^{1310397910873} is an apocalyptic number.

It is an amenable number.

1310397910873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310397910873 is an equidigital number, since it uses as much as digits as its factorization.

1310397910873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 52.

The spelling of 1310397910873 in words is "one trillion, three hundred ten billion, three hundred ninety-seven million, nine hundred ten thousand, eight hundred seventy-three".