1121233232 has 160 divisors (see below), whose sum is σ = 2753823744. Its totient is φ = 431308800.

The previous prime is 1121233231. The next prime is 1121233261. The reversal of 1121233232 is 2323321211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121233231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4137257 + ... + 4137527.

Almost surely, 2^1121233232 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 1121233232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376911872).

1121233232 is an abundant number, since it is smaller than the sum of its proper divisors (1632590512).

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

1121233232 is a wasteful number, since it uses less digits than its factorization.

1121233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 391 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1121233232 is about 33484.8209193360. The cubic root of 1121233232 is about 1038.8798442397.

Adding to 1121233232 its reverse (2323321211), we get a palindrome (3444554443).

It can be divided in two parts, 11212 and 33232, that added together give a palindrome (44444).

The spelling of 1121233232 in words is "one billion, one hundred twenty-one million, two hundred thirty-three thousand, two hundred thirty-two".