11801109 has 8 divisors (see below), whose sum is σ = 16563040. Its totient is φ = 7453296.

The previous prime is 11801063. The next prime is 11801129. The reversal of 11801109 is 90110811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11801109 - 2⁸ = 11800853 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 (11801129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103462 + ... + 103575.

It is an arithmetic number, because the mean of its divisors is an integer number (2070380).

Almost surely, 2^11801109 is an apocalyptic number.

11801109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11801109 is a deficient number, since it is larger than the sum of its proper divisors (4761931).

11801109 is a wasteful number, since it uses less digits than its factorization.

11801109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207059.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 11801109 is about 3435.2742248618. The cubic root of 11801109 is about 227.6709434527.

The spelling of 11801109 in words is "eleven million, eight hundred one thousand, one hundred nine".