43420351043 has 2 divisors, whose sum is σ = 43420351044. Its totient is φ = 43420351042.

The previous prime is 43420351033. The next prime is 43420351087. The reversal of 43420351043 is 34015302434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43420351043 - 2²⁴ = 43403573827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43420350997 and 43420351015.

It is not a weakly prime, because it can be changed into another prime (43420351033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21710175521 + 21710175522.

It is an arithmetic number, because the mean of its divisors is an integer number (21710175522).

Almost surely, 2^43420351043 is an apocalyptic number.

43420351043 is a deficient number, since it is larger than the sum of its proper divisors (1).

43420351043 is an equidigital number, since it uses as much as digits as its factorization.

43420351043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 43420351043 its reverse (34015302434), we get a palindrome (77435653477).

The spelling of 43420351043 in words is "forty-three billion, four hundred twenty million, three hundred fifty-one thousand, forty-three".