109110891109 has 16 divisors (see below), whose sum is σ = 123149160000. Its totient is φ = 95759950720.

The previous prime is 109110891103. The next prime is 109110891173. The reversal of 109110891109 is 901198011901.

It is a cyclic number.

It is not a de Polignac number, because 109110891109 - 2⁷ = 109110890981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109110891103) 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, 3794217 + ... + 3822865.

It is an arithmetic number, because the mean of its divisors is an integer number (7696822500).

Almost surely, 2^109110891109 is an apocalyptic number.

It is an amenable number.

109110891109 is a deficient number, since it is larger than the sum of its proper divisors (14038268891).

109110891109 is a wasteful number, since it uses less digits than its factorization.

109110891109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40628.

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 109110891109 in words is "one hundred nine billion, one hundred ten million, eight hundred ninety-one thousand, one hundred nine".