43123042159 has 2 divisors, whose sum is σ = 43123042160. Its totient is φ = 43123042158.

The previous prime is 43123042139. The next prime is 43123042169. The reversal of 43123042159 is 95124032134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43123042159 - 2¹¹ = 43123040111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43123042139) 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, 21561521079 + 21561521080.

It is an arithmetic number, because the mean of its divisors is an integer number (21561521080).

Almost surely, 2^43123042159 is an apocalyptic number.

43123042159 is a deficient number, since it is larger than the sum of its proper divisors (1).

43123042159 is an equidigital number, since it uses as much as digits as its factorization.

43123042159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 43123042159 in words is "forty-three billion, one hundred twenty-three million, forty-two thousand, one hundred fifty-nine".