1311032330291 has 2 divisors, whose sum is σ = 1311032330292. Its totient is φ = 1311032330290.

The previous prime is 1311032330219. The next prime is 1311032330359. The reversal of 1311032330291 is 1920332301131.

It is a happy number.

Together with previous prime (1311032330219) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311032330291 - 2¹⁴ = 1311032313907 is a prime.

It is a super-2 number, since 2×1311032330291² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1311032320291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655516165145 + 655516165146.

It is an arithmetic number, because the mean of its divisors is an integer number (655516165146).

Almost surely, 2^{1311032330291} is an apocalyptic number.

1311032330291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311032330291 is an equidigital number, since it uses as much as digits as its factorization.

1311032330291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 1311032330291 in words is "one trillion, three hundred eleven billion, thirty-two million, three hundred thirty thousand, two hundred ninety-one".