110109091091 has 4 divisors (see below), whose sum is σ = 112669767672. Its totient is φ = 107548414512.

The previous prime is 110109091063. The next prime is 110109091117. The reversal of 110109091091 is 190190901011.

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 110109091091 - 2¹⁴ = 110109074707 is a prime.

It is a super-2 number, since 2×110109091091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110109091591) 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, 1280338226 + ... + 1280338311.

It is an arithmetic number, because the mean of its divisors is an integer number (28167441918).

Almost surely, 2^110109091091 is an apocalyptic number.

110109091091 is a deficient number, since it is larger than the sum of its proper divisors (2560676581).

110109091091 is an equidigital number, since it uses as much as digits as its factorization.

110109091091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560676580.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 110109091091 in words is "one hundred ten billion, one hundred nine million, ninety-one thousand, ninety-one".