11011011133 has 4 divisors (see below), whose sum is σ = 11050196508. Its totient is φ = 10971825760.

The previous prime is 11011011059. The next prime is 11011011149. The reversal of 11011011133 is 33111011011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2758560484 + 8252450649 = 52522^2 + 90843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011011133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011011173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19592266 + ... + 19592827.

It is an arithmetic number, because the mean of its divisors is an integer number (2762549127).

Almost surely, 2^11011011133 is an apocalyptic number.

It is an amenable number.

11011011133 is a deficient number, since it is larger than the sum of its proper divisors (39185375).

11011011133 is an equidigital number, since it uses as much as digits as its factorization.

11011011133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39185374.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11011011133 its reverse (33111011011), we get a palindrome (44122022144).

The spelling of 11011011133 in words is "eleven billion, eleven million, eleven thousand, one hundred thirty-three".