11031109 has 4 divisors (see below), whose sum is σ = 11059020. Its totient is φ = 11003200.

The previous prime is 11031073. The next prime is 11031121. The reversal of 11031109 is 90113011.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6235009 + 4796100 = 2497^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 11031109 - 2⁹ = 11030597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031092 and 11031101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031169) 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, 13354 + ... + 14155.

It is an arithmetic number, because the mean of its divisors is an integer number (2764755).

Almost surely, 2^11031109 is an apocalyptic number.

It is an amenable number.

11031109 is a deficient number, since it is larger than the sum of its proper divisors (27911).

11031109 is an equidigital number, since it uses as much as digits as its factorization.

11031109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27910.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 11031109 is about 3321.3113374088. The cubic root of 11031109 is about 222.6074656560.

The spelling of 11031109 in words is "eleven million, thirty-one thousand, one hundred nine".