11110091 has 2 divisors, whose sum is σ = 11110092. Its totient is φ = 11110090.

The previous prime is 11110069. The next prime is 11110093. The reversal of 11110091 is 19001111.

It is a happy number.

11110091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11110091 is a prime.

Together with 11110093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11110093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555045 + 5555046.

It is an arithmetic number, because the mean of its divisors is an integer number (5555046).

Almost surely, 2^11110091 is an apocalyptic number.

11110091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110091 is an equidigital number, since it uses as much as digits as its factorization.

11110091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 14.

The square root of 11110091 is about 3333.1803131544. The cubic root of 11110091 is about 223.1374875252.

The spelling of 11110091 in words is "eleven million, one hundred ten thousand, ninety-one".