11700109 has 4 divisors (see below), whose sum is σ = 11731360. Its totient is φ = 11668860.

The previous prime is 11700089. The next prime is 11700119. The reversal of 11700109 is 90100711.

It is a happy number.

11700109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11700109 - 2¹³ = 11691917 is a prime.

It is a super-2 number, since 2×11700109² = 273785101223762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11700119) 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, 15057 + ... + 15814.

It is an arithmetic number, because the mean of its divisors is an integer number (2932840).

Almost surely, 2^11700109 is an apocalyptic number.

It is an amenable number.

11700109 is a deficient number, since it is larger than the sum of its proper divisors (31251).

11700109 is an equidigital number, since it uses as much as digits as its factorization.

11700109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31250.

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 11700109 is about 3420.5422084810. The cubic root of 11700109 is about 227.0195730501.

The spelling of 11700109 in words is "eleven million, seven hundred thousand, one hundred nine".