11211133 has 2 divisors, whose sum is σ = 11211134. Its totient is φ = 11211132.

The previous prime is 11211131. The next prime is 11211169. The reversal of 11211133 is 33111211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10510564 + 700569 = 3242^2 + 837^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211133 - 2¹ = 11211131 is a prime.

Together with 11211131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211131) 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, 5605566 + 5605567.

It is an arithmetic number, because the mean of its divisors is an integer number (5605567).

Almost surely, 2^11211133 is an apocalyptic number.

It is an amenable number.

11211133 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211133 is an equidigital number, since it uses as much as digits as its factorization.

11211133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18, while the sum is 13.

The square root of 11211133 is about 3348.3030030151. The cubic root of 11211133 is about 223.8118969856.

Adding to 11211133 its reverse (33111211), we get a palindrome (44322344).

The spelling of 11211133 in words is "eleven million, two hundred eleven thousand, one hundred thirty-three".