421203 has 4 divisors (see below), whose sum is σ = 561608. Its totient is φ = 280800.

The previous prime is 421189. The next prime is 421207. The reversal of 421203 is 302124.

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

It is not a de Polignac number, because 421203 - 2⁹ = 420691 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70198 + ... + 70203.

It is an arithmetic number, because the mean of its divisors is an integer number (140402).

2⁴²¹²⁰³ is an apocalyptic number.

421203 is a deficient number, since it is larger than the sum of its proper divisors (140405).

421203 is a wasteful number, since it uses less digits than its factorization.

421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140404.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 421203 is about 649.0015408302. The cubic root of 421203 is about 74.9601566149.

Adding to 421203 its reverse (302124), we get a palindrome (723327).

The spelling of 421203 in words is "four hundred twenty-one thousand, two hundred three", and thus it is an iban number.