11112131320091 has 2 divisors, whose sum is σ = 11112131320092. Its totient is φ = 11112131320090.

The previous prime is 11112131320067. The next prime is 11112131320097. The reversal of 11112131320091 is 19002313121111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112131320091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11112131320091.

It is not a weakly prime, because it can be changed into another prime (11112131320097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556065660045 + 5556065660046.

It is an arithmetic number, because the mean of its divisors is an integer number (5556065660046).

Almost surely, 2^{11112131320091} is an apocalyptic number.

11112131320091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112131320091 is an equidigital number, since it uses as much as digits as its factorization.

11112131320091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 11112131320091 in words is "eleven trillion, one hundred twelve billion, one hundred thirty-one million, three hundred twenty thousand, ninety-one".