3201402321 has 72 divisors (see below), whose sum is σ = 5385294720. Its totient is φ = 1825918848.

The previous prime is 3201402317. The next prime is 3201402383. The reversal of 3201402321 is 1232041023.

It is not a de Polignac number, because 3201402321 - 2² = 3201402317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3201402294 and 3201402303.

It is not an unprimeable number, because it can be changed into a prime (3201402121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1357075 + ... + 1359431.

It is an arithmetic number, because the mean of its divisors is an integer number (74795760).

Almost surely, 2^3201402321 is an apocalyptic number.

It is an amenable number.

3201402321 is a deficient number, since it is larger than the sum of its proper divisors (2183892399).

3201402321 is a wasteful number, since it uses less digits than its factorization.

3201402321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455 (or 2439 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3201402321 is about 56580.9360208896. The cubic root of 3201402321 is about 1473.8278261339.

Adding to 3201402321 its reverse (1232041023), we get a palindrome (4433443344).

The spelling of 3201402321 in words is "three billion, two hundred one million, four hundred two thousand, three hundred twenty-one".