1321333332 has 24 divisors (see below), whose sum is σ = 3363394272. Its totient is φ = 400404000.

The previous prime is 1321333327. The next prime is 1321333333. The reversal of 1321333332 is 2333331231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321333333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5004919 + ... + 5005182.

It is an arithmetic number, because the mean of its divisors is an integer number (140141428).

Almost surely, 2^1321333332 is an apocalyptic number.

1321333332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321333332 is an abundant number, since it is smaller than the sum of its proper divisors (2042060940).

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

1321333332 is a wasteful number, since it uses less digits than its factorization.

1321333332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010119 (or 10010117 counting only the distinct ones).

The product of its digits is 2916, while the sum is 24.

The square root of 1321333332 is about 36350.1489955681. The cubic root of 1321333332 is about 1097.3305330704.

Adding to 1321333332 its reverse (2333331231), we get a palindrome (3654664563).

The spelling of 1321333332 in words is "one billion, three hundred twenty-one million, three hundred thirty-three thousand, three hundred thirty-two".