109090909111 has 4 divisors (see below), whose sum is σ = 110171017224. Its totient is φ = 108010801000.

The previous prime is 109090909093. The next prime is 109090909129. The reversal of 109090909111 is 111909090901.

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

It is an interprime number because it is at equal distance from previous prime (109090909093) and next prime (109090909129).

It is a cyclic number.

It is not a de Polignac number, because 109090909111 - 2⁵ = 109090909079 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 (109090909171) 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, 540053905 + ... + 540054106.

It is an arithmetic number, because the mean of its divisors is an integer number (27542754306).

Almost surely, 2^109090909111 is an apocalyptic number.

109090909111 is a deficient number, since it is larger than the sum of its proper divisors (1080108113).

109090909111 is a wasteful number, since it uses less digits than its factorization.

109090909111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080108112.

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 109090909111 in words is "one hundred nine billion, ninety million, nine hundred nine thousand, one hundred eleven".