100090190091 has 24 divisors (see below), whose sum is σ = 135497887744. Its totient is φ = 65713107600.

The previous prime is 100090190089. The next prime is 100090190093. The reversal of 100090190091 is 190091090001.

It is an interprime number because it is at equal distance from previous prime (100090190089) and next prime (100090190093).

It is not a de Polignac number, because 100090190091 - 2¹ = 100090190089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100090190093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75882730 + ... + 75884048.

Almost surely, 2^100090190091 is an apocalyptic number.

100090190091 is a deficient number, since it is larger than the sum of its proper divisors (35407697653).

100090190091 is an equidigital number, since it uses as much as digits as its factorization.

100090190091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 100090190091 in words is "one hundred billion, ninety million, one hundred ninety thousand, ninety-one".