1312343952617 has 2 divisors, whose sum is σ = 1312343952618. Its totient is φ = 1312343952616.

The previous prime is 1312343952613. The next prime is 1312343952697. The reversal of 1312343952617 is 7162593432131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1288778939536 + 23565013081 = 1135244^2 + 153509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312343952617 - 2² = 1312343952613 is a prime.

It is a super-2 number, since 2×1312343952617² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312343952611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656171976308 + 656171976309.

It is an arithmetic number, because the mean of its divisors is an integer number (656171976309).

Almost surely, 2^{1312343952617} is an apocalyptic number.

It is an amenable number.

1312343952617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312343952617 is an equidigital number, since it uses as much as digits as its factorization.

1312343952617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The spelling of 1312343952617 in words is "one trillion, three hundred twelve billion, three hundred forty-three million, nine hundred fifty-two thousand, six hundred seventeen".