11117191 has 8 divisors (see below), whose sum is σ = 11433744. Its totient is φ = 10802880.

The previous prime is 11117123. The next prime is 11117213. The reversal of 11117191 is 19171111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11117191 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 (11117101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15936 + ... + 16618.

It is an arithmetic number, because the mean of its divisors is an integer number (1429218).

Almost surely, 2^11117191 is an apocalyptic number.

11117191 is a deficient number, since it is larger than the sum of its proper divisors (316553).

11117191 is an equidigital number, since it uses as much as digits as its factorization.

11117191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121.

The product of its digits is 63, while the sum is 22.

The square root of 11117191 is about 3334.2451919437. The cubic root of 11117191 is about 223.1850100522.

The spelling of 11117191 in words is "eleven million, one hundred seventeen thousand, one hundred ninety-one".