109291911111 has 6 divisors (see below), whose sum is σ = 157866093840. Its totient is φ = 72861274068.

The previous prime is 109291911103. The next prime is 109291911149. The reversal of 109291911111 is 111119192901.

It is not a de Polignac number, because 109291911111 - 2³ = 109291911103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109091911111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6071772831 + ... + 6071772848.

It is an arithmetic number, because the mean of its divisors is an integer number (26311015640).

Almost surely, 2^109291911111 is an apocalyptic number.

109291911111 is a deficient number, since it is larger than the sum of its proper divisors (48574182729).

109291911111 is a wasteful number, since it uses less digits than its factorization.

109291911111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12143545685 (or 12143545682 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 36.

The spelling of 109291911111 in words is "one hundred nine billion, two hundred ninety-one million, nine hundred eleven thousand, one hundred eleven".