11317911 has 16 divisors (see below), whose sum is σ = 16744320. Its totient is φ = 6741920.

The previous prime is 11317877. The next prime is 11317921. The reversal of 11317911 is 11971311.

It is a cyclic number.

It is not a de Polignac number, because 11317911 - 2²¹ = 9220759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11317921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960 + ... + 4853.

It is an arithmetic number, because the mean of its divisors is an integer number (1046520).

Almost surely, 2^11317911 is an apocalyptic number.

11317911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11317911 is a deficient number, since it is larger than the sum of its proper divisors (5426409).

11317911 is a wasteful number, since it uses less digits than its factorization.

11317911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886.

The product of its digits is 189, while the sum is 24.

The square root of 11317911 is about 3364.2103085271. The cubic root of 11317911 is about 224.5202022815.

The spelling of 11317911 in words is "eleven million, three hundred seventeen thousand, nine hundred eleven".