423245321 has 4 divisors (see below), whose sum is σ = 425610000. Its totient is φ = 420880644.

The previous prime is 423245309. The next prime is 423245327. The reversal of 423245321 is 123542324.

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 423245321 - 2¹⁸ = 422983177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423245327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182071 + ... + 1182428.

It is an arithmetic number, because the mean of its divisors is an integer number (106402500).

Almost surely, 2^423245321 is an apocalyptic number.

It is an amenable number.

423245321 is a deficient number, since it is larger than the sum of its proper divisors (2364679).

423245321 is a wasteful number, since it uses less digits than its factorization.

423245321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364678.

The product of its digits is 5760, while the sum is 26.

The square root of 423245321 is about 20572.9268943434. The cubic root of 423245321 is about 750.8111644408.

Adding to 423245321 its reverse (123542324), we get a palindrome (546787645).

The spelling of 423245321 in words is "four hundred twenty-three million, two hundred forty-five thousand, three hundred twenty-one".