12013123043 has 2 divisors, whose sum is σ = 12013123044. Its totient is φ = 12013123042.

The previous prime is 12013122977. The next prime is 12013123081. The reversal of 12013123043 is 34032131021.

12013123043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12013123043 - 2¹² = 12013118947 is a prime.

It is not a weakly prime, because it can be changed into another prime (12013123093) 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, 6006561521 + 6006561522.

It is an arithmetic number, because the mean of its divisors is an integer number (6006561522).

Almost surely, 2^12013123043 is an apocalyptic number.

12013123043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013123043 is an equidigital number, since it uses as much as digits as its factorization.

12013123043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12013123043 its reverse (34032131021), we get a palindrome (46045254064).

The spelling of 12013123043 in words is "twelve billion, thirteen million, one hundred twenty-three thousand, forty-three".