91100110012 has 12 divisors (see below), whose sum is σ = 159469737336. Its totient is φ = 45537327920.

The previous prime is 91100110009. The next prime is 91100110067. The reversal of 91100110012 is 21001100119.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3165658 + ... + 3194305.

It is an arithmetic number, because the mean of its divisors is an integer number (13289144778).

Almost surely, 2^91100110012 is an apocalyptic number.

It is an amenable number.

91100110012 is a deficient number, since it is larger than the sum of its proper divisors (68369627324).

91100110012 is a wasteful number, since it uses less digits than its factorization.

91100110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363548 (or 6363546 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 91100110012 in words is "ninety-one billion, one hundred million, one hundred ten thousand, twelve".