13112321191 has 2 divisors, whose sum is σ = 13112321192. Its totient is φ = 13112321190.

The previous prime is 13112321177. The next prime is 13112321207. The reversal of 13112321191 is 19112321131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13112321191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13112321111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556160595 + 6556160596.

It is an arithmetic number, because the mean of its divisors is an integer number (6556160596).

Almost surely, 2^13112321191 is an apocalyptic number.

13112321191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112321191 is an equidigital number, since it uses as much as digits as its factorization.

13112321191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 25.

The spelling of 13112321191 in words is "thirteen billion, one hundred twelve million, three hundred twenty-one thousand, one hundred ninety-one".