1121313232 has 40 divisors (see below), whose sum is σ = 2349476360. Its totient is φ = 515358720.

The previous prime is 1121313229. The next prime is 1121313247. The reversal of 1121313232 is 2323131211.

It can be written as a sum of positive squares in 4 ways, for example, as 103958416 + 1017354816 = 10196^2 + 31896^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38944 + ... + 61312.

It is an arithmetic number, because the mean of its divisors is an integer number (58736909).

Almost surely, 2^1121313232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121313232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174738180).

1121313232 is an abundant number, since it is smaller than the sum of its proper divisors (1228163128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121313232 is a wasteful number, since it uses less digits than its factorization.

1121313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22631 (or 22625 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1121313232 is about 33486.0154691477. The cubic root of 1121313232 is about 1038.9045516804.

Adding to 1121313232 its reverse (2323131211), we get a palindrome (3444444443).

The spelling of 1121313232 in words is "one billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred thirty-two".