1311301233091 has 2 divisors, whose sum is σ = 1311301233092. Its totient is φ = 1311301233090.

The previous prime is 1311301233043. The next prime is 1311301233097. The reversal of 1311301233091 is 1903321031131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311301233091 - 2²³ = 1311292844483 is a prime.

It is a super-2 number, since 2×1311301233091² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1311301233097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655650616545 + 655650616546.

It is an arithmetic number, because the mean of its divisors is an integer number (655650616546).

Almost surely, 2^{1311301233091} is an apocalyptic number.

1311301233091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311301233091 is an equidigital number, since it uses as much as digits as its factorization.

1311301233091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The spelling of 1311301233091 in words is "one trillion, three hundred eleven billion, three hundred one million, two hundred thirty-three thousand, ninety-one".