324201321 has 12 divisors (see below), whose sum is σ = 471710772. Its totient is φ = 214555776.

The previous prime is 324201301. The next prime is 324201337. The reversal of 324201321 is 123102423.

324201321 is a `hidden beast` number, since 324 + 20 + 1 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142922025 + 181279296 = 11955^2 + 13464^2 .

It is not a de Polignac number, because 324201321 - 2¹¹ = 324199273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 324201294 and 324201303.

It is not an unprimeable number, because it can be changed into a prime (324201301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130236 + ... + 132701.

It is an arithmetic number, because the mean of its divisors is an integer number (39309231).

Almost surely, 2^324201321 is an apocalyptic number.

It is an amenable number.

324201321 is a deficient number, since it is larger than the sum of its proper divisors (147509451).

324201321 is a wasteful number, since it uses less digits than its factorization.

324201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263080 (or 263077 counting only the distinct ones).

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

The square root of 324201321 is about 18005.5913815681. The cubic root of 324201321 is about 686.9707722607.

Adding to 324201321 its reverse (123102423), we get a palindrome (447303744).

The spelling of 324201321 in words is "three hundred twenty-four million, two hundred one thousand, three hundred twenty-one".