3321312321 has 8 divisors (see below), whose sum is σ = 4688911584. Its totient is φ = 2083960640.

The previous prime is 3321312307. The next prime is 3321312329. The reversal of 3321312321 is 1232131233.

3321312321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3321312321 - 2¹⁹ = 3320788033 is a prime.

It is a super-3 number, since 3×3321312321³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3321312329) 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, 32561835 + ... + 32561936.

It is an arithmetic number, because the mean of its divisors is an integer number (586113948).

Almost surely, 2^3321312321 is an apocalyptic number.

It is an amenable number.

3321312321 is a deficient number, since it is larger than the sum of its proper divisors (1367599263).

3321312321 is a wasteful number, since it uses less digits than its factorization.

3321312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65123791.

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

The square root of 3321312321 is about 57630.8278701599. The cubic root of 3321312321 is about 1492.0037185122.

Adding to 3321312321 its reverse (1232131233), we get a palindrome (4553443554).

It can be divided in two parts, 332131232 and 1, that added together give a palindrome (332131233).

The spelling of 3321312321 in words is "three billion, three hundred twenty-one million, three hundred twelve thousand, three hundred twenty-one".