91011112010201 has 16 divisors (see below), whose sum is σ = 94546069986816. Its totient is φ = 87538836000000.

The previous prime is 91011112010177. The next prime is 91011112010263. The reversal of 91011112010201 is 10201021111019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91011112010201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91011112010501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143460701 + ... + 144093701.

It is an arithmetic number, because the mean of its divisors is an integer number (5909129374176).

Almost surely, 2^{91011112010201} is an apocalyptic number.

It is an amenable number.

91011112010201 is a deficient number, since it is larger than the sum of its proper divisors (3534957976615).

91011112010201 is a wasteful number, since it uses less digits than its factorization.

91011112010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682504.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 91011112010201 in words is "ninety-one trillion, eleven billion, one hundred twelve million, ten thousand, two hundred one".