11317291 has 4 divisors (see below), whose sum is σ = 11983032. Its totient is φ = 10651552.

The previous prime is 11317277. The next prime is 11317297. The reversal of 11317291 is 19271311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19271311 = 307 ⋅62773.

It is a cyclic number.

It is not a de Polignac number, because 11317291 - 2⁵ = 11317259 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11317297) 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 3 ways as a sum of consecutive naturals, for example, 332845 + ... + 332878.

It is an arithmetic number, because the mean of its divisors is an integer number (2995758).

Almost surely, 2^11317291 is an apocalyptic number.

11317291 is a deficient number, since it is larger than the sum of its proper divisors (665741).

11317291 is an equidigital number, since it uses as much as digits as its factorization.

11317291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665740.

The product of its digits is 378, while the sum is 25.

The square root of 11317291 is about 3364.1181608261. The cubic root of 11317291 is about 224.5161024358.

The spelling of 11317291 in words is "eleven million, three hundred seventeen thousand, two hundred ninety-one".