12131042203 has 4 divisors (see below), whose sum is σ = 13864048240. Its totient is φ = 10398036168.

The previous prime is 12131042197. The next prime is 12131042219. The reversal of 12131042203 is 30224013121.

It is a happy number.

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 12131042203 - 2⁹ = 12131041691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131042293) 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, 866503008 + ... + 866503021.

It is an arithmetic number, because the mean of its divisors is an integer number (3466012060).

Almost surely, 2^12131042203 is an apocalyptic number.

12131042203 is a deficient number, since it is larger than the sum of its proper divisors (1733006037).

12131042203 is an equidigital number, since it uses as much as digits as its factorization.

12131042203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733006036.

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

Adding to 12131042203 its reverse (30224013121), we get a palindrome (42355055324).

The spelling of 12131042203 in words is "twelve billion, one hundred thirty-one million, forty-two thousand, two hundred three".