324142321 has 2 divisors, whose sum is σ = 324142322. Its totient is φ = 324142320.

The previous prime is 324142303. The next prime is 324142333. The reversal of 324142321 is 123241423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258855921 + 65286400 = 16089^2 + 8080^2 .

It is a cyclic number.

It is not a de Polignac number, because 324142321 - 2¹¹ = 324140273 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 324142292 and 324142301.

It is not a weakly prime, because it can be changed into another prime (324142391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162071160 + 162071161.

It is an arithmetic number, because the mean of its divisors is an integer number (162071161).

Almost surely, 2^324142321 is an apocalyptic number.

It is an amenable number.

324142321 is a deficient number, since it is larger than the sum of its proper divisors (1).

324142321 is an equidigital number, since it uses as much as digits as its factorization.

324142321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

The square root of 324142321 is about 18003.9529270658. The cubic root of 324142321 is about 686.9290967833.

Adding to 324142321 its reverse (123241423), we get a palindrome (447383744).

The spelling of 324142321 in words is "three hundred twenty-four million, one hundred forty-two thousand, three hundred twenty-one".