4243244411321 has 2 divisors, whose sum is σ = 4243244411322. Its totient is φ = 4243244411320.

The previous prime is 4243244411299. The next prime is 4243244411333. The reversal of 4243244411321 is 1231144423424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2714470429225 + 1528773982096 = 1647565^2 + 1236436^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243244411321 - 2⁶ = 4243244411257 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243244411521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121622205660 + 2121622205661.

It is an arithmetic number, because the mean of its divisors is an integer number (2121622205661).

Almost surely, 2^{4243244411321} is an apocalyptic number.

It is an amenable number.

4243244411321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243244411321 is an equidigital number, since it uses as much as digits as its factorization.

4243244411321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 35.

Adding to 4243244411321 its reverse (1231144423424), we get a palindrome (5474388834745).

The spelling of 4243244411321 in words is "four trillion, two hundred forty-three billion, two hundred forty-four million, four hundred eleven thousand, three hundred twenty-one".