4243244201243 has 4 divisors (see below), whose sum is σ = 4243351072560. Its totient is φ = 4243137329928.

The previous prime is 4243244201239. The next prime is 4243244201257. The reversal of 4243244201243 is 3421024423424.

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 4243244201243 - 2² = 4243244201239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243244201543) 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, 53376080 + ... + 53455517.

It is an arithmetic number, because the mean of its divisors is an integer number (1060837768140).

Almost surely, 2^{4243244201243} is an apocalyptic number.

4243244201243 is a deficient number, since it is larger than the sum of its proper divisors (106871317).

4243244201243 is a wasteful number, since it uses less digits than its factorization.

4243244201243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106871316.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 4243244201243 its reverse (3421024423424), we get a palindrome (7664268624667).

The spelling of 4243244201243 in words is "four trillion, two hundred forty-three billion, two hundred forty-four million, two hundred one thousand, two hundred forty-three".