13113330991 has 2 divisors, whose sum is σ = 13113330992. Its totient is φ = 13113330990.

The previous prime is 13113330977. The next prime is 13113331003. The reversal of 13113330991 is 19903331131.

It is a strong prime.

It is an emirp because it is prime and its reverse (19903331131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13113330991 - 2¹³ = 13113322799 is a prime.

It is a super-3 number, since 3×13113330991³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113330961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556665495 + 6556665496.

It is an arithmetic number, because the mean of its divisors is an integer number (6556665496).

Almost surely, 2^13113330991 is an apocalyptic number.

13113330991 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113330991 is an equidigital number, since it uses as much as digits as its factorization.

13113330991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 34.

The spelling of 13113330991 in words is "thirteen billion, one hundred thirteen million, three hundred thirty thousand, nine hundred ninety-one".