11118109 has 4 divisors (see below), whose sum is σ = 11220220. Its totient is φ = 11016000.

The previous prime is 11118071. The next prime is 11118127. The reversal of 11118109 is 90181111.

11118109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90181111 = 317 ⋅284483.

It can be written as a sum of positive squares in 2 ways, for example, as 3572100 + 7546009 = 1890^2 + 2747^2 .

It is a cyclic number.

It is not a de Polignac number, because 11118109 - 2⁹ = 11117597 is a prime.

It is a super-2 number, since 2×11118109² = 247224695471762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11118109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118139) 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, 50892 + ... + 51109.

It is an arithmetic number, because the mean of its divisors is an integer number (2805055).

Almost surely, 2^11118109 is an apocalyptic number.

It is an amenable number.

11118109 is a deficient number, since it is larger than the sum of its proper divisors (102111).

11118109 is a wasteful number, since it uses less digits than its factorization.

11118109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102110.

The product of its (nonzero) digits is 72, while the sum is 22.

The square root of 11118109 is about 3334.3828514434. The cubic root of 11118109 is about 223.1911530368.

The spelling of 11118109 in words is "eleven million, one hundred eighteen thousand, one hundred nine".