11331321133 has 16 divisors (see below), whose sum is σ = 12632705280. Its totient is φ = 10075435200.

The previous prime is 11331321109. The next prime is 11331321149. The reversal of 11331321133 is 33112313311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331321133 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 (11331321163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893803 + ... + 906391.

It is an arithmetic number, because the mean of its divisors is an integer number (789544080).

Almost surely, 2^11331321133 is an apocalyptic number.

It is an amenable number.

11331321133 is a deficient number, since it is larger than the sum of its proper divisors (1301384147).

11331321133 is a wasteful number, since it uses less digits than its factorization.

11331321133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14388.

The product of its digits is 486, while the sum is 22.

Adding to 11331321133 its reverse (33112313311), we get a palindrome (44443634444).

The spelling of 11331321133 in words is "eleven billion, three hundred thirty-one million, three hundred twenty-one thousand, one hundred thirty-three".