12100203 has 12 divisors (see below), whose sum is σ = 17559360. Its totient is φ = 8029296.

The previous prime is 12100201. The next prime is 12100211. The reversal of 12100203 is 30200121.

It is a happy number.

12100203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12100203 - 2¹ = 12100201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12100201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (1463280).

Almost surely, 2^12100203 is an apocalyptic number.

12100203 is a deficient number, since it is larger than the sum of its proper divisors (5459157).

12100203 is a wasteful number, since it uses less digits than its factorization.

12100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258 (or 6255 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12100203 is about 3478.5346052612. The cubic root of 12100203 is about 229.5783263200.

Adding to 12100203 its reverse (30200121), we get a palindrome (42300324).

The spelling of 12100203 in words is "twelve million, one hundred thousand, two hundred three".