91100000117 has 4 divisors (see below), whose sum is σ = 104114285856. Its totient is φ = 78085714380.

The previous prime is 91100000113. The next prime is 91100000149. The reversal of 91100000117 is 71100000119.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91100000117 - 2² = 91100000113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91100000113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6507142859 + ... + 6507142872.

It is an arithmetic number, because the mean of its divisors is an integer number (26028571464).

Almost surely, 2^91100000117 is an apocalyptic number.

It is an amenable number.

91100000117 is a deficient number, since it is larger than the sum of its proper divisors (13014285739).

91100000117 is a wasteful number, since it uses less digits than its factorization.

91100000117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13014285738.

The product of its (nonzero) digits is 63, while the sum is 20.

The spelling of 91100000117 in words is "ninety-one billion, one hundred million, one hundred seventeen", and thus it is an aban number.