11317871 has 4 divisors (see below), whose sum is σ = 11328000. Its totient is φ = 11307744.

The previous prime is 11317853. The next prime is 11317877. The reversal of 11317871 is 17871311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17871311 = 83 ⋅215317.

It is a cyclic number.

It is not a de Polignac number, because 11317871 - 2⁶ = 11317807 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 (11317877) 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, 3146 + ... + 5703.

It is an arithmetic number, because the mean of its divisors is an integer number (2832000).

Almost surely, 2^11317871 is an apocalyptic number.

11317871 is a deficient number, since it is larger than the sum of its proper divisors (10129).

11317871 is an equidigital number, since it uses as much as digits as its factorization.

11317871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10128.

The product of its digits is 1176, while the sum is 29.

The square root of 11317871 is about 3364.2043635903. The cubic root of 11317871 is about 224.5199377798.

The spelling of 11317871 in words is "eleven million, three hundred seventeen thousand, eight hundred seventy-one".