11533211444 has 12 divisors (see below), whose sum is σ = 20183885568. Its totient is φ = 5766387000.

The previous prime is 11533211441. The next prime is 11533211467. The reversal of 11533211444 is 44411233511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11533211441) 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, 144899 + ... + 209909.

It is an arithmetic number, because the mean of its divisors is an integer number (1681990464).

Almost surely, 2^11533211444 is an apocalyptic number.

It is an amenable number.

11533211444 is a deficient number, since it is larger than the sum of its proper divisors (8650674124).

11533211444 is a wasteful number, since it uses less digits than its factorization.

11533211444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109366 (or 109364 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

Adding to 11533211444 its reverse (44411233511), we get a palindrome (55944444955).

The spelling of 11533211444 in words is "eleven billion, five hundred thirty-three million, two hundred eleven thousand, four hundred forty-four".