11571317 has 2 divisors, whose sum is σ = 11571318. Its totient is φ = 11571316.

The previous prime is 11571293. The next prime is 11571337. The reversal of 11571317 is 71317511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10407076 + 1164241 = 3226^2 + 1079^2 .

It is an emirp because it is prime and its reverse (71317511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11571317 - 2¹² = 11567221 is a prime.

It is a super-2 number, since 2×11571317² = 267790754228978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11571337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5785658 + 5785659.

It is an arithmetic number, because the mean of its divisors is an integer number (5785659).

Almost surely, 2^11571317 is an apocalyptic number.

It is an amenable number.

11571317 is a deficient number, since it is larger than the sum of its proper divisors (1).

11571317 is an equidigital number, since it uses as much as digits as its factorization.

11571317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 735, while the sum is 26.

The square root of 11571317 is about 3401.6638575850. The cubic root of 11571317 is about 226.1835053821.

Adding to 11571317 its reverse (71317511), we get a palindrome (82888828).

The spelling of 11571317 in words is "eleven million, five hundred seventy-one thousand, three hundred seventeen".