11002171 has 2 divisors, whose sum is σ = 11002172. Its totient is φ = 11002170.

The previous prime is 11002169. The next prime is 11002177. The reversal of 11002171 is 17120011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11002171 - 2¹ = 11002169 is a prime.

Together with 11002169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11002177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501085 + 5501086.

It is an arithmetic number, because the mean of its divisors is an integer number (5501086).

Almost surely, 2^11002171 is an apocalyptic number.

11002171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002171 is an equidigital number, since it uses as much as digits as its factorization.

11002171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 11002171 is about 3316.9520647727. The cubic root of 11002171 is about 222.4126391878.

Adding to 11002171 its reverse (17120011), we get a palindrome (28122182).

The spelling of 11002171 in words is "eleven million, two thousand, one hundred seventy-one".