13421203 has 4 divisors (see below), whose sum is σ = 13733368. Its totient is φ = 13109040.

The previous prime is 13421173. The next prime is 13421207. The reversal of 13421203 is 30212431.

It is a happy number.

13421203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13421203 - 2⁹ = 13420691 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13421207) 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, 156018 + ... + 156103.

It is an arithmetic number, because the mean of its divisors is an integer number (3433342).

Almost surely, 2^13421203 is an apocalyptic number.

13421203 is a deficient number, since it is larger than the sum of its proper divisors (312165).

13421203 is an equidigital number, since it uses as much as digits as its factorization.

13421203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312164.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13421203 is about 3663.4960079138. The cubic root of 13421203 is about 237.6459852251.

Adding to 13421203 its reverse (30212431), we get a palindrome (43633634).

The spelling of 13421203 in words is "thirteen million, four hundred twenty-one thousand, two hundred three".