423210203 has 4 divisors (see below), whose sum is σ = 455764848. Its totient is φ = 390655560.

The previous prime is 423210191. The next prime is 423210209. The reversal of 423210203 is 302012324.

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 423210203 - 2¹⁴ = 423193819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423210209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16277303 + ... + 16277328.

It is an arithmetic number, because the mean of its divisors is an integer number (113941212).

Almost surely, 2^423210203 is an apocalyptic number.

423210203 is a deficient number, since it is larger than the sum of its proper divisors (32554645).

423210203 is a wasteful number, since it uses less digits than its factorization.

423210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32554644.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 423210203 is about 20572.0733763031. The cubic root of 423210203 is about 750.7903981425.

Adding to 423210203 its reverse (302012324), we get a palindrome (725222527).

The spelling of 423210203 in words is "four hundred twenty-three million, two hundred ten thousand, two hundred three".