43331588806243 has 2 divisors, whose sum is σ = 43331588806244. Its totient is φ = 43331588806242.

The previous prime is 43331588806223. The next prime is 43331588806309. The reversal of 43331588806243 is 34260888513334.

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-43331588806243 is a prime.

It is not a weakly prime, because it can be changed into another prime (43331588806223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21665794403121 + 21665794403122.

It is an arithmetic number, because the mean of its divisors is an integer number (21665794403122).

Almost surely, 2^{43331588806243} is an apocalyptic number.

43331588806243 is a deficient number, since it is larger than the sum of its proper divisors (1).

43331588806243 is an equidigital number, since it uses as much as digits as its factorization.

43331588806243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39813120, while the sum is 58.

The spelling of 43331588806243 in words is "forty-three trillion, three hundred thirty-one billion, five hundred eighty-eight million, eight hundred six thousand, two hundred forty-three".