1313144242691 has 2 divisors, whose sum is σ = 1313144242692. Its totient is φ = 1313144242690.

The previous prime is 1313144242687. The next prime is 1313144242693. The reversal of 1313144242691 is 1962424413131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313144242691 - 2² = 1313144242687 is a prime.

It is a super-2 number, since 2×1313144242691² (a number of 25 digits) contains 22 as substring.

Together with 1313144242693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1313144242693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656572121345 + 656572121346.

It is an arithmetic number, because the mean of its divisors is an integer number (656572121346).

Almost surely, 2^{1313144242691} is an apocalyptic number.

1313144242691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313144242691 is an equidigital number, since it uses as much as digits as its factorization.

1313144242691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The spelling of 1313144242691 in words is "one trillion, three hundred thirteen billion, one hundred forty-four million, two hundred forty-two thousand, six hundred ninety-one".