13311222232991 has 2 divisors, whose sum is σ = 13311222232992. Its totient is φ = 13311222232990.

The previous prime is 13311222232981. The next prime is 13311222233039. The reversal of 13311222232991 is 19923222211331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13311222232991 - 2⁶ = 13311222232927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13311222232981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655611116495 + 6655611116496.

It is an arithmetic number, because the mean of its divisors is an integer number (6655611116496).

Almost surely, 2^{13311222232991} is an apocalyptic number.

13311222232991 is a deficient number, since it is larger than the sum of its proper divisors (1).

13311222232991 is an equidigital number, since it uses as much as digits as its factorization.

13311222232991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The spelling of 13311222232991 in words is "thirteen trillion, three hundred eleven billion, two hundred twenty-two million, two hundred thirty-two thousand, nine hundred ninety-one".