43044004123 has 2 divisors, whose sum is σ = 43044004124. Its totient is φ = 43044004122.

The previous prime is 43044004079. The next prime is 43044004127. The reversal of 43044004123 is 32140044034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43044004123 - 2¹⁷ = 43043873051 is a prime.

It is not a weakly prime, because it can be changed into another prime (43044004127) 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, 21522002061 + 21522002062.

It is an arithmetic number, because the mean of its divisors is an integer number (21522002062).

Almost surely, 2^43044004123 is an apocalyptic number.

43044004123 is a deficient number, since it is larger than the sum of its proper divisors (1).

43044004123 is an equidigital number, since it uses as much as digits as its factorization.

43044004123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43044004123 its reverse (32140044034), we get a palindrome (75184048157).

The spelling of 43044004123 in words is "forty-three billion, forty-four million, four thousand, one hundred twenty-three".