6331325321 has 2 divisors, whose sum is σ = 6331325322. Its totient is φ = 6331325320.

The previous prime is 6331325311. The next prime is 6331325323. The reversal of 6331325321 is 1235231336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5522719225 + 808606096 = 74315^2 + 28436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6331325321 is a prime.

It is a super-3 number, since 3×6331325321³ (a number of 30 digits) contains 333 as substring.

Together with 6331325323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6331325323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3165662660 + 3165662661.

It is an arithmetic number, because the mean of its divisors is an integer number (3165662661).

Almost surely, 2^6331325321 is an apocalyptic number.

It is an amenable number.

6331325321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6331325321 is an equidigital number, since it uses as much as digits as its factorization.

6331325321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

The square root of 6331325321 is about 79569.6256180711. The cubic root of 6331325321 is about 1849.9708123956.

Adding to 6331325321 its reverse (1235231336), we get a palindrome (7566556657).

The spelling of 6331325321 in words is "six billion, three hundred thirty-one million, three hundred twenty-five thousand, three hundred twenty-one".