11171 has 2 divisors, whose sum is σ = 11172.
Its totient is φ = 11170.
The previous prime is 11161. The next prime is 11173. The reversal of 11171 is 17111.
11171 = T58 + T59 + ... +
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-11171 is a prime.
It is a Sophie Germain prime.
Together with 11173, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 15.
It is not a weakly prime, because it can be changed into another prime (11173) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5585 + 5586.
It is an arithmetic number, because the mean of its divisors is an integer number (5586).
211171 is an apocalyptic number.
11171 is a deficient number, since it is larger than the sum of its proper divisors (1).
11171 is an equidigital number, since it uses as much as digits as its factorization.
11171 is an evil number, because the sum of its binary digits is even.
The product of its digits is 7, while the sum is 11.
The square root of 11171 is about 105.6929515152.
The cubic root of 11171 is about 22.3544514487.
Adding to 11171 its reverse (17111), we get a palindrome (28282).
It can be divided in two parts, 11 and 171, that multiplied together give a palindrome (1881).
The spelling of 11171 in words is "eleven thousand, one hundred seventy-one", and thus it is an iban number.