43043703712843 has 2 divisors, whose sum is σ = 43043703712844. Its totient is φ = 43043703712842.

The previous prime is 43043703712721. The next prime is 43043703712871. The reversal of 43043703712843 is 34821730734034.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43043703712843 is a prime.

It is not a weakly prime, because it can be changed into another prime (43043703719843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521851856421 + 21521851856422.

It is an arithmetic number, because the mean of its divisors is an integer number (21521851856422).

Almost surely, 2^{43043703712843} is an apocalyptic number.

43043703712843 is a deficient number, since it is larger than the sum of its proper divisors (1).

43043703712843 is an equidigital number, since it uses as much as digits as its factorization.

43043703712843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 43043703712843 in words is "forty-three trillion, forty-three billion, seven hundred three million, seven hundred twelve thousand, eight hundred forty-three".