11133209 has 2 divisors, whose sum is σ = 11133210. Its totient is φ = 11133208.

The previous prime is 11133203. The next prime is 11133211. The reversal of 11133209 is 90233111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10272025 + 861184 = 3205^2 + 928^2 .

It is an emirp because it is prime and its reverse (90233111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11133209 - 2⁴ = 11133193 is a prime.

Together with 11133211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11133203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566604 + 5566605.

It is an arithmetic number, because the mean of its divisors is an integer number (5566605).

Almost surely, 2^11133209 is an apocalyptic number.

It is an amenable number.

11133209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133209 is an equidigital number, since it uses as much as digits as its factorization.

11133209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 11133209 is about 3336.6463702346. The cubic root of 11133209 is about 223.2921492832.

The spelling of 11133209 in words is "eleven million, one hundred thirty-three thousand, two hundred nine".