109901111 has 4 divisors (see below), whose sum is σ = 115685400. Its totient is φ = 104116824.

The previous prime is 109901089. The next prime is 109901117. The reversal of 109901111 is 111109901.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109901111 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 (109901117) 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, 2892116 + ... + 2892153.

It is an arithmetic number, because the mean of its divisors is an integer number (28921350).

Almost surely, 2^109901111 is an apocalyptic number.

109901111 is a deficient number, since it is larger than the sum of its proper divisors (5784289).

109901111 is an equidigital number, since it uses as much as digits as its factorization.

109901111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784288.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 109901111 is about 10483.3730735866. The cubic root of 109901111 is about 478.9983612289.

The spelling of 109901111 in words is "one hundred nine million, nine hundred one thousand, one hundred eleven".