43550565324011 has 2 divisors, whose sum is σ = 43550565324012. Its totient is φ = 43550565324010.

The previous prime is 43550565324001. The next prime is 43550565324031. The reversal of 43550565324011 is 11042356505534.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43550565324011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (43550565324001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21775282662005 + 21775282662006.

It is an arithmetic number, because the mean of its divisors is an integer number (21775282662006).

Almost surely, 2^{43550565324011} is an apocalyptic number.

43550565324011 is a deficient number, since it is larger than the sum of its proper divisors (1).

43550565324011 is an equidigital number, since it uses as much as digits as its factorization.

43550565324011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 43550565324011 in words is "forty-three trillion, five hundred fifty billion, five hundred sixty-five million, three hundred twenty-four thousand, eleven".