12131311043 has 2 divisors, whose sum is σ = 12131311044. Its totient is φ = 12131311042.

The previous prime is 12131311013. The next prime is 12131311063. The reversal of 12131311043 is 34011313121.

12131311043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12131311063) can be obtained adding 12131311043 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12131311043 - 2¹⁶ = 12131245507 is a prime.

It is not a weakly prime, because it can be changed into another prime (12131311013) 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 as a sum of consecutive naturals, namely, 6065655521 + 6065655522.

It is an arithmetic number, because the mean of its divisors is an integer number (6065655522).

Almost surely, 2^12131311043 is an apocalyptic number.

12131311043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131311043 is an equidigital number, since it uses as much as digits as its factorization.

12131311043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12131311043 its reverse (34011313121), we get a palindrome (46142624164).

The spelling of 12131311043 in words is "twelve billion, one hundred thirty-one million, three hundred eleven thousand, forty-three".