43240244204273 has 2 divisors, whose sum is σ = 43240244204274. Its totient is φ = 43240244204272.

The previous prime is 43240244204173. The next prime is 43240244204281. The reversal of 43240244204273 is 37240244204234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42972967612129 + 267276592144 = 6555377^2 + 516988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43240244204273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43240244204273.

It is not a weakly prime, because it can be changed into another prime (43240244204173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21620122102136 + 21620122102137.

It is an arithmetic number, because the mean of its divisors is an integer number (21620122102137).

Almost surely, 2^{43240244204273} is an apocalyptic number.

It is an amenable number.

43240244204273 is a deficient number, since it is larger than the sum of its proper divisors (1).

43240244204273 is an equidigital number, since it uses as much as digits as its factorization.

43240244204273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 41.

The spelling of 43240244204273 in words is "forty-three trillion, two hundred forty billion, two hundred forty-four million, two hundred four thousand, two hundred seventy-three".