11101000091 has 2 divisors, whose sum is σ = 11101000092. Its totient is φ = 11101000090.

The previous prime is 11101000039. The next prime is 11101000109. The reversal of 11101000091 is 19000010111.

It is a happy number.

Together with next prime (11101000109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101000091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101000291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550500045 + 5550500046.

It is an arithmetic number, because the mean of its divisors is an integer number (5550500046).

Almost surely, 2^11101000091 is an apocalyptic number.

11101000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101000091 is an equidigital number, since it uses as much as digits as its factorization.

11101000091 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 11101000091 in words is "eleven billion, one hundred one million, ninety-one", and thus it is an aban number.