13112301991 has 2 divisors, whose sum is σ = 13112301992. Its totient is φ = 13112301990.

The previous prime is 13112301971. The next prime is 13112302057. The reversal of 13112301991 is 19910321131.

It is a weak prime.

It is an emirp because it is prime and its reverse (19910321131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13112301991 - 2⁵ = 13112301959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13112301971) 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, 6556150995 + 6556150996.

It is an arithmetic number, because the mean of its divisors is an integer number (6556150996).

Almost surely, 2^13112301991 is an apocalyptic number.

13112301991 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112301991 is an equidigital number, since it uses as much as digits as its factorization.

13112301991 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 31.

The spelling of 13112301991 in words is "thirteen billion, one hundred twelve million, three hundred one thousand, nine hundred ninety-one".