113131130191 has 2 divisors, whose sum is σ = 113131130192. Its totient is φ = 113131130190.

The previous prime is 113131130143. The next prime is 113131130249. The reversal of 113131130191 is 191031131311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113131130191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113131130111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56565565095 + 56565565096.

It is an arithmetic number, because the mean of its divisors is an integer number (56565565096).

Almost surely, 2^113131130191 is an apocalyptic number.

113131130191 is a deficient number, since it is larger than the sum of its proper divisors (1).

113131130191 is an equidigital number, since it uses as much as digits as its factorization.

113131130191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 25.

The spelling of 113131130191 in words is "one hundred thirteen billion, one hundred thirty-one million, one hundred thirty thousand, one hundred ninety-one".