43420043041 has 4 divisors (see below), whose sum is σ = 44343873792. Its totient is φ = 42496212292.

The previous prime is 43420043039. The next prime is 43420043053. The reversal of 43420043041 is 14034002434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14034002434 = 2 ⋅7017001217.

It is a cyclic number.

It is not a de Polignac number, because 43420043041 - 2¹ = 43420043039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43420042997 and 43420043015.

It is not an unprimeable number, because it can be changed into a prime (43420043021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461915305 + ... + 461915398.

It is an arithmetic number, because the mean of its divisors is an integer number (11085968448).

Almost surely, 2^43420043041 is an apocalyptic number.

It is an amenable number.

43420043041 is a deficient number, since it is larger than the sum of its proper divisors (923830751).

43420043041 is an equidigital number, since it uses as much as digits as its factorization.

43420043041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923830750.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43420043041 its reverse (14034002434), we get a palindrome (57454045475).

The spelling of 43420043041 in words is "forty-three billion, four hundred twenty million, forty-three thousand, forty-one".