3121321332 has 48 divisors (see below), whose sum is σ = 7506656192. Its totient is φ = 1008702720.

The previous prime is 3121321327. The next prime is 3121321339. The reversal of 3121321332 is 2331231213.

3121321332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 3121321299 and 3121321308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121321339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113232 + ... + 138072.

Almost surely, 2^3121321332 is an apocalyptic number.

It is an amenable number.

3121321332 is an abundant number, since it is smaller than the sum of its proper divisors (4385334860).

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

3121321332 is a wasteful number, since it uses less digits than its factorization.

3121321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25168 (or 25166 counting only the distinct ones).

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

The square root of 3121321332 is about 55868.7867417935. The cubic root of 3121321332 is about 1461.4349643598.

Adding to 3121321332 its reverse (2331231213), we get a palindrome (5452552545).

The spelling of 3121321332 in words is "three billion, one hundred twenty-one million, three hundred twenty-one thousand, three hundred thirty-two".