11171207 has 2 divisors, whose sum is σ = 11171208. Its totient is φ = 11171206.

The previous prime is 11171203. The next prime is 11171239. The reversal of 11171207 is 70217111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11171207 - 2² = 11171203 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11171201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5585603 + 5585604.

It is an arithmetic number, because the mean of its divisors is an integer number (5585604).

Almost surely, 2^11171207 is an apocalyptic number.

11171207 is a deficient number, since it is larger than the sum of its proper divisors (1).

11171207 is an equidigital number, since it uses as much as digits as its factorization.

11171207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98, while the sum is 20.

The square root of 11171207 is about 3342.3355606522. The cubic root of 11171207 is about 223.5458952472.

Adding to 11171207 its reverse (70217111), we get a palindrome (81388318).

The spelling of 11171207 in words is "eleven million, one hundred seventy-one thousand, two hundred seven".