11311171 has 6 divisors (see below), whose sum is σ = 12015980. Its totient is φ = 10645536.

The previous prime is 11311133. The next prime is 11311177. The reversal of 11311171 is 17111311.

It is not a de Polignac number, because 11311171 - 2⁷ = 11311043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19281 + ... + 19858.

Almost surely, 2^11311171 is an apocalyptic number.

11311171 is a deficient number, since it is larger than the sum of its proper divisors (704809).

11311171 is an equidigital number, since it uses as much as digits as its factorization.

11311171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39173 (or 39156 counting only the distinct ones).

The product of its digits is 21, while the sum is 16.

The square root of 11311171 is about 3363.2084383814. The cubic root of 11311171 is about 224.4756249546.

Adding to 11311171 its reverse (17111311), we get a palindrome (28422482).

The spelling of 11311171 in words is "eleven million, three hundred eleven thousand, one hundred seventy-one".