324104021 has 4 divisors (see below), whose sum is σ = 325066092. Its totient is φ = 323141952.

The previous prime is 324104009. The next prime is 324104059. The reversal of 324104021 is 120401423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120401423 = 19 ⋅6336917.

It can be written as a sum of positive squares in 2 ways, for example, as 129640996 + 194463025 = 11386^2 + 13945^2 .

It is a cyclic number.

It is not a de Polignac number, because 324104021 - 2¹⁴ = 324087637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324104821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480530 + ... + 481203.

It is an arithmetic number, because the mean of its divisors is an integer number (81266523).

Almost surely, 2^324104021 is an apocalyptic number.

It is an amenable number.

324104021 is a deficient number, since it is larger than the sum of its proper divisors (962071).

324104021 is an equidigital number, since it uses as much as digits as its factorization.

324104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962070.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 324104021 is about 18002.8892403414. The cubic root of 324104021 is about 686.9020403341.

Adding to 324104021 its reverse (120401423), we get a palindrome (444505444).

The spelling of 324104021 in words is "three hundred twenty-four million, one hundred four thousand, twenty-one".