111052009 has 4 divisors (see below), whose sum is σ = 111073360. Its totient is φ = 111030660.

The previous prime is 111052003. The next prime is 111052021. The reversal of 111052009 is 900250111.

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 111052009 - 2³ = 111052001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111052001) 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, 2782 + ... + 15160.

It is an arithmetic number, because the mean of its divisors is an integer number (27768340).

Almost surely, 2^111052009 is an apocalyptic number.

It is an amenable number.

111052009 is a deficient number, since it is larger than the sum of its proper divisors (21351).

111052009 is an equidigital number, since it uses as much as digits as its factorization.

111052009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21350.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 111052009 is about 10538.1217017076. The cubic root of 111052009 is about 480.6646016567.

The spelling of 111052009 in words is "one hundred eleven million, fifty-two thousand, nine".