324004424021 has 4 divisors (see below), whose sum is σ = 324623935872. Its totient is φ = 323384912172.

The previous prime is 324004423949. The next prime is 324004424041. The reversal of 324004424021 is 120424400423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120424400423 = 7019 ⋅17156917.

It is a cyclic number.

It is not a de Polignac number, because 324004424021 - 2²² = 324000229717 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 (324004424041) 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, 309755141 + ... + 309756186.

It is an arithmetic number, because the mean of its divisors is an integer number (81155983968).

Almost surely, 2^324004424021 is an apocalyptic number.

It is an amenable number.

324004424021 is a deficient number, since it is larger than the sum of its proper divisors (619511851).

324004424021 is an equidigital number, since it uses as much as digits as its factorization.

324004424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619511850.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 324004424021 its reverse (120424400423), we get a palindrome (444428824444).

The spelling of 324004424021 in words is "three hundred twenty-four billion, four million, four hundred twenty-four thousand, twenty-one".