112911111191 has 2 divisors, whose sum is σ = 112911111192. Its totient is φ = 112911111190.

The previous prime is 112911111169. The next prime is 112911111199. The reversal of 112911111191 is 191111119211.

It is a strong prime.

It is an emirp because it is prime and its reverse (191111119211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112911111191 - 2²² = 112906916887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112911111199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56455555595 + 56455555596.

It is an arithmetic number, because the mean of its divisors is an integer number (56455555596).

Almost surely, 2^112911111191 is an apocalyptic number.

112911111191 is a deficient number, since it is larger than the sum of its proper divisors (1).

112911111191 is an equidigital number, since it uses as much as digits as its factorization.

112911111191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 29.

The spelling of 112911111191 in words is "one hundred twelve billion, nine hundred eleven million, one hundred eleven thousand, one hundred ninety-one".