1311620461351 has 2 divisors, whose sum is σ = 1311620461352. Its totient is φ = 1311620461350.

The previous prime is 1311620461339. The next prime is 1311620461357. The reversal of 1311620461351 is 1531640261131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311620461351 is a prime.

It is a super-2 number, since 2×1311620461351² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311620461357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655810230675 + 655810230676.

It is an arithmetic number, because the mean of its divisors is an integer number (655810230676).

Almost surely, 2^{1311620461351} is an apocalyptic number.

1311620461351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311620461351 is an equidigital number, since it uses as much as digits as its factorization.

1311620461351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 1311620461351 in words is "one trillion, three hundred eleven billion, six hundred twenty million, four hundred sixty-one thousand, three hundred fifty-one".