324423303421 has 4 divisors (see below), whose sum is σ = 370769489632. Its totient is φ = 278077117212.

The previous prime is 324423303397. The next prime is 324423303497. The reversal of 324423303421 is 124303324423.

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: 124303324423 = 139511 ⋅890993.

It is a cyclic number.

It is not a de Polignac number, because 324423303421 - 2⁵ = 324423303389 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 (324423303221) 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, 23173093095 + ... + 23173093108.

It is an arithmetic number, because the mean of its divisors is an integer number (92692372408).

Almost surely, 2^324423303421 is an apocalyptic number.

It is an amenable number.

324423303421 is a deficient number, since it is larger than the sum of its proper divisors (46346186211).

324423303421 is an equidigital number, since it uses as much as digits as its factorization.

324423303421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46346186210.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 324423303421 its reverse (124303324423), we get a palindrome (448726627844).

The spelling of 324423303421 in words is "three hundred twenty-four billion, four hundred twenty-three million, three hundred three thousand, four hundred twenty-one".