12131230203 has 6 divisors (see below), whose sum is σ = 17522888084. Its totient is φ = 8087486796.

The previous prime is 12131230169. The next prime is 12131230271. The reversal of 12131230203 is 30203213121.

12131230203 is a `hidden beast` number, since 121 + 312 + 30 + 203 = 666.

It is not a de Polignac number, because 12131230203 - 2¹⁰ = 12131229179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131230273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 673957225 + ... + 673957242.

Almost surely, 2^12131230203 is an apocalyptic number.

12131230203 is a deficient number, since it is larger than the sum of its proper divisors (5391657881).

12131230203 is a wasteful number, since it uses less digits than its factorization.

12131230203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347914473 (or 1347914470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12131230203 its reverse (30203213121), we get a palindrome (42334443324).

The spelling of 12131230203 in words is "twelve billion, one hundred thirty-one million, two hundred thirty thousand, two hundred three".