2009110011091 has 4 divisors (see below), whose sum is σ = 2009118612672. Its totient is φ = 2009101409512.

The previous prime is 2009110011031. The next prime is 2009110011101. The reversal of 2009110011091 is 1901100119002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2009110011091 - 2³⁵ = 1974750272723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009110011001) 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, 3940360 + ... + 4420933.

It is an arithmetic number, because the mean of its divisors is an integer number (502279653168).

Almost surely, 2^{2009110011091} is an apocalyptic number.

2009110011091 is a deficient number, since it is larger than the sum of its proper divisors (8601581).

2009110011091 is an equidigital number, since it uses as much as digits as its factorization.

2009110011091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601580.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 2009110011091 in words is "two trillion, nine billion, one hundred ten million, eleven thousand, ninety-one".