43023421127149 has 2 divisors, whose sum is σ = 43023421127150. Its totient is φ = 43023421127148.

The previous prime is 43023421127131. The next prime is 43023421127189. The reversal of 43023421127149 is 94172112432034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26963821728900 + 16059599398249 = 5192670^2 + 4007443^2 .

It is a cyclic number.

It is not a de Polignac number, because 43023421127149 - 2²⁹ = 43022884256237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43023421127129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21511710563574 + 21511710563575.

It is an arithmetic number, because the mean of its divisors is an integer number (21511710563575).

Almost surely, 2^{43023421127149} is an apocalyptic number.

It is an amenable number.

43023421127149 is a deficient number, since it is larger than the sum of its proper divisors (1).

43023421127149 is an equidigital number, since it uses as much as digits as its factorization.

43023421127149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 43023421127149 in words is "forty-three trillion, twenty-three billion, four hundred twenty-one million, one hundred twenty-seven thousand, one hundred forty-nine".