3201331312 has 20 divisors (see below), whose sum is σ = 6402663616. Its totient is φ = 1549031040.

The previous prime is 3201331303. The next prime is 3201331349. The reversal of 3201331312 is 2131331023.

3201331312 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 3201331312.

It is a congruent number.

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, 3226653 + ... + 3227644.

Almost surely, 2^3201331312 is an apocalyptic number.

It is an amenable number.

3201331312 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3201331312 is a wasteful number, since it uses less digits than its factorization.

3201331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454336 (or 6454330 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3201331312 is about 56580.3085180701. The cubic root of 3201331312 is about 1473.8169292619.

Adding to 3201331312 its reverse (2131331023), we get a palindrome (5332662335).

The spelling of 3201331312 in words is "three billion, two hundred one million, three hundred thirty-one thousand, three hundred twelve".