12131203 has 16 divisors (see below), whose sum is σ = 14547456. Its totient is φ = 9898560.

The previous prime is 12131179. The next prime is 12131219. The reversal of 12131203 is 30213121.

12131203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12131203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11850 + ... + 12832.

It is an arithmetic number, because the mean of its divisors is an integer number (909216).

Almost surely, 2^12131203 is an apocalyptic number.

12131203 is a deficient number, since it is larger than the sum of its proper divisors (2416253).

12131203 is an equidigital number, since it uses as much as digits as its factorization.

12131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12131203 is about 3482.9876542991. The cubic root of 12131203 is about 229.7742144671.

Adding to 12131203 its reverse (30213121), we get a palindrome (42344324).

The spelling of 12131203 in words is "twelve million, one hundred thirty-one thousand, two hundred three".