12043015843 has 2 divisors, whose sum is σ = 12043015844. Its totient is φ = 12043015842.

The previous prime is 12043015837. The next prime is 12043015909. The reversal of 12043015843 is 34851034021.

It is a weak prime.

It is an emirp because it is prime and its reverse (34851034021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12043015843 - 2²⁹ = 11506144931 is a prime.

It is not a weakly prime, because it can be changed into another prime (12043019843) 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, 6021507921 + 6021507922.

It is an arithmetic number, because the mean of its divisors is an integer number (6021507922).

Almost surely, 2^12043015843 is an apocalyptic number.

12043015843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12043015843 is an equidigital number, since it uses as much as digits as its factorization.

12043015843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 12043015843 its reverse (34851034021), we get a palindrome (46894049864).

The spelling of 12043015843 in words is "twelve billion, forty-three million, fifteen thousand, eight hundred forty-three".