4340221040243 has 4 divisors (see below), whose sum is σ = 4734786589368. Its totient is φ = 3945655491120.

The previous prime is 4340221040231. The next prime is 4340221040273. The reversal of 4340221040243 is 3420401220434.

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 4340221040243 - 2⁴ = 4340221040227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4340221040203) 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, 197282774546 + ... + 197282774567.

It is an arithmetic number, because the mean of its divisors is an integer number (1183696647342).

Almost surely, 2^{4340221040243} is an apocalyptic number.

4340221040243 is a deficient number, since it is larger than the sum of its proper divisors (394565549125).

4340221040243 is a wasteful number, since it uses less digits than its factorization.

4340221040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394565549124.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 4340221040243 its reverse (3420401220434), we get a palindrome (7760622260677).

The spelling of 4340221040243 in words is "four trillion, three hundred forty billion, two hundred twenty-one million, forty thousand, two hundred forty-three".