43431020511059 has 2 divisors, whose sum is σ = 43431020511060. Its totient is φ = 43431020511058.

The previous prime is 43431020510993. The next prime is 43431020511061. The reversal of 43431020511059 is 95011502013434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43431020511059 - 2⁸ = 43431020510803 is a prime.

Together with 43431020511061, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43431820511059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21715510255529 + 21715510255530.

It is an arithmetic number, because the mean of its divisors is an integer number (21715510255530).

Almost surely, 2^{43431020511059} is an apocalyptic number.

43431020511059 is a deficient number, since it is larger than the sum of its proper divisors (1).

43431020511059 is an equidigital number, since it uses as much as digits as its factorization.

43431020511059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 43431020511059 in words is "forty-three trillion, four hundred thirty-one billion, twenty million, five hundred eleven thousand, fifty-nine".