4043421022243 has 4 divisors (see below), whose sum is σ = 4044877064280. Its totient is φ = 4041964980208.

The previous prime is 4043421022181. The next prime is 4043421022283. The reversal of 4043421022243 is 3422201243404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4043421022243 - 2¹³ = 4043421014051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4043421022283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728016853 + ... + 728022406.

It is an arithmetic number, because the mean of its divisors is an integer number (1011219266070).

Almost surely, 2^{4043421022243} is an apocalyptic number.

4043421022243 is a deficient number, since it is larger than the sum of its proper divisors (1456042037).

4043421022243 is a wasteful number, since it uses less digits than its factorization.

4043421022243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456042036.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4043421022243 its reverse (3422201243404), we get a palindrome (7465622265647).

The spelling of 4043421022243 in words is "four trillion, forty-three billion, four hundred twenty-one million, twenty-two thousand, two hundred forty-three".