11011213133 has 2 divisors, whose sum is σ = 11011213134. Its totient is φ = 11011213132.

The previous prime is 11011213097. The next prime is 11011213181. The reversal of 11011213133 is 33131211011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9935504329 + 1075708804 = 99677^2 + 32798^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011213133 - 2²² = 11007018829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011213183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505606566 + 5505606567.

It is an arithmetic number, because the mean of its divisors is an integer number (5505606567).

Almost surely, 2^11011213133 is an apocalyptic number.

It is an amenable number.

11011213133 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011213133 is an equidigital number, since it uses as much as digits as its factorization.

11011213133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11011213133 its reverse (33131211011), we get a palindrome (44142424144).

The spelling of 11011213133 in words is "eleven billion, eleven million, two hundred thirteen thousand, one hundred thirty-three".