423413321 has 4 divisors (see below), whose sum is σ = 426459600. Its totient is φ = 420367044.

The previous prime is 423413297. The next prime is 423413351. The reversal of 423413321 is 123314324.

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.

It is a cyclic number.

It is not a de Polignac number, because 423413321 - 2¹⁸ = 423151177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423413351) 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, 1522931 + ... + 1523208.

It is an arithmetic number, because the mean of its divisors is an integer number (106614900).

Almost surely, 2^423413321 is an apocalyptic number.

It is an amenable number.

423413321 is a deficient number, since it is larger than the sum of its proper divisors (3046279).

423413321 is a wasteful number, since it uses less digits than its factorization.

423413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046278.

The product of its digits is 1728, while the sum is 23.

The square root of 423413321 is about 20577.0095251958. The cubic root of 423413321 is about 750.9104918551.

Adding to 423413321 its reverse (123314324), we get a palindrome (546727645).

The spelling of 423413321 in words is "four hundred twenty-three million, four hundred thirteen thousand, three hundred twenty-one".