324021013 has 4 divisors (see below), whose sum is σ = 324527148. Its totient is φ = 323514880.

The previous prime is 324021011. The next prime is 324021077. The reversal of 324021013 is 310120423.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121044004 + 202977009 = 11002^2 + 14247^2 .

It is a cyclic number.

It is not a de Polignac number, because 324021013 - 2¹ = 324021011 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 (324021011) 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, 252106 + ... + 253387.

It is an arithmetic number, because the mean of its divisors is an integer number (81131787).

Almost surely, 2^324021013 is an apocalyptic number.

It is an amenable number.

324021013 is a deficient number, since it is larger than the sum of its proper divisors (506135).

324021013 is an equidigital number, since it uses as much as digits as its factorization.

324021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506134.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 324021013 is about 18000.5836849809. The cubic root of 324021013 is about 686.8433932853.

Adding to 324021013 its reverse (310120423), we get a palindrome (634141436).

The spelling of 324021013 in words is "three hundred twenty-four million, twenty-one thousand, thirteen".