12120203 has 4 divisors (see below), whose sum is σ = 12130008. Its totient is φ = 12110400.

The previous prime is 12120181. The next prime is 12120223. The reversal of 12120203 is 30202121.

It is a happy number.

12120203 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30202121 = 997 ⋅30293.

It is a cyclic number.

It is not a de Polignac number, because 12120203 - 2¹² = 12116107 is a prime.

It is a super-2 number, since 2×12120203² = 293798641522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120223) 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, 2726 + ... + 5627.

It is an arithmetic number, because the mean of its divisors is an integer number (3032502).

Almost surely, 2^12120203 is an apocalyptic number.

12120203 is a deficient number, since it is larger than the sum of its proper divisors (9805).

12120203 is an equidigital number, since it uses as much as digits as its factorization.

12120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9804.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12120203 is about 3481.4081920970. The cubic root of 12120203 is about 229.7047440090.

Adding to 12120203 its reverse (30202121), we get a palindrome (42322324).

The spelling of 12120203 in words is "twelve million, one hundred twenty thousand, two hundred three".