12131200423 has 2 divisors, whose sum is σ = 12131200424. Its totient is φ = 12131200422.

The previous prime is 12131200387. The next prime is 12131200439. The reversal of 12131200423 is 32400213121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12131200423 - 2⁹ = 12131199911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12131200423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131200483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065600211 + 6065600212.

It is an arithmetic number, because the mean of its divisors is an integer number (6065600212).

Almost surely, 2^12131200423 is an apocalyptic number.

12131200423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131200423 is an equidigital number, since it uses as much as digits as its factorization.

12131200423 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12131200423 its reverse (32400213121), we get a palindrome (44531413544).

The spelling of 12131200423 in words is "twelve billion, one hundred thirty-one million, two hundred thousand, four hundred twenty-three".