1311232332 has 96 divisors (see below), whose sum is σ = 3387283200. Its totient is φ = 393120000.

The previous prime is 1311232319. The next prime is 1311232339. The reversal of 1311232332 is 2332321131.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1311232299 and 1311232308.

It is not an unprimeable number, because it can be changed into a prime (1311232339) 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, 401707 + ... + 404957.

It is an arithmetic number, because the mean of its divisors is an integer number (35284200).

Almost surely, 2^1311232332 is an apocalyptic number.

1311232332 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 1311232332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693641600).

1311232332 is an abundant number, since it is smaller than the sum of its proper divisors (2076050868).

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

1311232332 is a wasteful number, since it uses less digits than its factorization.

1311232332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367 (or 3365 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 1311232332 is about 36210.9421584139. The cubic root of 1311232332 is about 1094.5271776952.

Adding to 1311232332 its reverse (2332321131), we get a palindrome (3643553463).

The spelling of 1311232332 in words is "one billion, three hundred eleven million, two hundred thirty-two thousand, three hundred thirty-two".