111253109 has 4 divisors (see below), whose sum is σ = 121367040. Its totient is φ = 101139180.

The previous prime is 111253063. The next prime is 111253111. The reversal of 111253109 is 901352111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111253109 - 2⁸ = 111252853 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 (111253159) 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, 5056949 + ... + 5056970.

It is an arithmetic number, because the mean of its divisors is an integer number (30341760).

Almost surely, 2^111253109 is an apocalyptic number.

It is an amenable number.

111253109 is a deficient number, since it is larger than the sum of its proper divisors (10113931).

111253109 is a wasteful number, since it uses less digits than its factorization.

111253109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113930.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 111253109 is about 10547.6589345693. The cubic root of 111253109 is about 480.9545659833.

The spelling of 111253109 in words is "one hundred eleven million, two hundred fifty-three thousand, one hundred nine".