12420203 has 8 divisors (see below), whose sum is σ = 12665856. Its totient is φ = 12177000.

The previous prime is 12420151. The next prime is 12420211. The reversal of 12420203 is 30202421.

12420203 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12420203 - 2⁶ = 12420139 is a prime.

It is a super-2 number, since 2×12420203² = 308522885122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12420263) 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 7 ways as a sum of consecutive naturals, for example, 12038 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (1583232).

Almost surely, 2^12420203 is an apocalyptic number.

12420203 is a deficient number, since it is larger than the sum of its proper divisors (245653).

12420203 is an equidigital number, since it uses as much as digits as its factorization.

12420203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12420203 is about 3524.2308380695. The cubic root of 12420203 is about 231.5845405864.

Adding to 12420203 its reverse (30202421), we get a palindrome (42622624).

The spelling of 12420203 in words is "twelve million, four hundred twenty thousand, two hundred three".