1321332132 has 12 divisors (see below), whose sum is σ = 3083108336. Its totient is φ = 440444040.

The previous prime is 1321332119. The next prime is 1321332151. The reversal of 1321332132 is 2312331231.

1321332132 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 = 1321332099 and 1321332108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55055494 + ... + 55055517.

Almost surely, 2^1321332132 is an apocalyptic number.

1321332132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321332132 is an abundant number, since it is smaller than the sum of its proper divisors (1761776204).

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

1321332132 is a wasteful number, since it uses less digits than its factorization.

1321332132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110111018 (or 110111016 counting only the distinct ones).

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

The square root of 1321332132 is about 36350.1324894422. The cubic root of 1321332132 is about 1097.3302008815.

Multiplying 1321332132 by its sum of digits (21), we get a palindrome (27747974772).

Adding to 1321332132 its reverse (2312331231), we get a palindrome (3633663363).

Subtracting 1321332132 from its reverse (2312331231), we obtain a palindrome (990999099).

The spelling of 1321332132 in words is "one billion, three hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty-two".