324344021 has 2 divisors, whose sum is σ = 324344022. Its totient is φ = 324344020.

The previous prime is 324343991. The next prime is 324344029. The reversal of 324344021 is 120443423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323640100 + 703921 = 17990^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 324344021 - 2²⁶ = 257235157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (324344029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162172010 + 162172011.

It is an arithmetic number, because the mean of its divisors is an integer number (162172011).

Almost surely, 2^324344021 is an apocalyptic number.

It is an amenable number.

324344021 is a deficient number, since it is larger than the sum of its proper divisors (1).

324344021 is an equidigital number, since it uses as much as digits as its factorization.

324344021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 324344021 is about 18009.5536035739. The cubic root of 324344021 is about 687.0715495076.

Adding to 324344021 its reverse (120443423), we get a palindrome (444787444).

The spelling of 324344021 in words is "three hundred twenty-four million, three hundred forty-four thousand, twenty-one".