12131402203 has 4 divisors (see below), whose sum is σ = 12132280728. Its totient is φ = 12130523680.

The previous prime is 12131402189. The next prime is 12131402273. The reversal of 12131402203 is 30220413121.

It is a happy number.

12131402203 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.

It is a cyclic number.

It is not a de Polignac number, because 12131402203 - 2⁹ = 12131401691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131402273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418213 + ... + 446278.

It is an arithmetic number, because the mean of its divisors is an integer number (3033070182).

Almost surely, 2^12131402203 is an apocalyptic number.

12131402203 is a deficient number, since it is larger than the sum of its proper divisors (878525).

12131402203 is an equidigital number, since it uses as much as digits as its factorization.

12131402203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878524.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12131402203 its reverse (30220413121), we get a palindrome (42351815324).

The spelling of 12131402203 in words is "twelve billion, one hundred thirty-one million, four hundred two thousand, two hundred three".