423203065 has 4 divisors (see below), whose sum is σ = 507843684. Its totient is φ = 338562448.

The previous prime is 423203023. The next prime is 423203089. The reversal of 423203065 is 560302324.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 210743289 + 212459776 = 14517^2 + 14576^2 .

It is a cyclic number.

It is not a de Polignac number, because 423203065 - 2⁷ = 423202937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42320302 + ... + 42320311.

It is an arithmetic number, because the mean of its divisors is an integer number (126960921).

Almost surely, 2^423203065 is an apocalyptic number.

It is an amenable number.

423203065 is a deficient number, since it is larger than the sum of its proper divisors (84640619).

423203065 is an equidigital number, since it uses as much as digits as its factorization.

423203065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84640618.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 423203065 is about 20571.8998879540. The cubic root of 423203065 is about 750.7861770943.

Adding to 423203065 its reverse (560302324), we get a palindrome (983505389).

The spelling of 423203065 in words is "four hundred twenty-three million, two hundred three thousand, sixty-five".