423321343 has 4 divisors (see below), whose sum is σ = 429639640. Its totient is φ = 417003048.

The previous prime is 423321319. The next prime is 423321347. The reversal of 423321343 is 343123324.

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

It is a cyclic number.

It is not a de Polignac number, because 423321343 - 2⁹ = 423320831 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 (423321347) 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, 3159048 + ... + 3159181.

It is an arithmetic number, because the mean of its divisors is an integer number (107409910).

Almost surely, 2^423321343 is an apocalyptic number.

423321343 is a deficient number, since it is larger than the sum of its proper divisors (6318297).

423321343 is an equidigital number, since it uses as much as digits as its factorization.

423321343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318296.

The product of its digits is 5184, while the sum is 25.

The square root of 423321343 is about 20574.7744337575. The cubic root of 423321343 is about 750.8561145335.

Adding to 423321343 its reverse (343123324), we get a palindrome (766444667).

The spelling of 423321343 in words is "four hundred twenty-three million, three hundred twenty-one thousand, three hundred forty-three".