11009171 has 2 divisors, whose sum is σ = 11009172. Its totient is φ = 11009170.

The previous prime is 11009153. The next prime is 11009179. The reversal of 11009171 is 17190011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11009171 - 2¹⁰ = 11008147 is a prime.

It is a super-2 number, since 2×11009171² = 242403692214482, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11009179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5504585 + 5504586.

It is an arithmetic number, because the mean of its divisors is an integer number (5504586).

Almost surely, 2^11009171 is an apocalyptic number.

11009171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11009171 is an equidigital number, since it uses as much as digits as its factorization.

11009171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 20.

The square root of 11009171 is about 3318.0070825723. The cubic root of 11009171 is about 222.4597983168.

Adding to 11009171 its reverse (17190011), we get a palindrome (28199182).

The spelling of 11009171 in words is "eleven million, nine thousand, one hundred seventy-one".