1132121232 has 160 divisors (see below), whose sum is σ = 3731904000. Its totient is φ = 324984960.

The previous prime is 1132121231. The next prime is 1132121261. The reversal of 1132121232 is 2321212311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (1132121231) 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, 84019 + ... + 96557.

It is an arithmetic number, because the mean of its divisors is an integer number (23324400).

Almost surely, 2^1132121232 is an apocalyptic number.

1132121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1132121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1865952000).

1132121232 is an abundant number, since it is smaller than the sum of its proper divisors (2599782768).

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

1132121232 is a wasteful number, since it uses less digits than its factorization.

1132121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586 (or 12574 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1132121232 is about 33647.0092578820. The cubic root of 1132121232 is about 1042.2317802801.

Adding to 1132121232 its reverse (2321212311), we get a palindrome (3453333543).

The spelling of 1132121232 in words is "one billion, one hundred thirty-two million, one hundred twenty-one thousand, two hundred thirty-two".