424120243321 has 2 divisors, whose sum is σ = 424120243322. Its totient is φ = 424120243320.

The previous prime is 424120243307. The next prime is 424120243367. The reversal of 424120243321 is 123342021424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404292505600 + 19827737721 = 635840^2 + 140811^2 .

It is a cyclic number.

It is not a de Polignac number, because 424120243321 - 2⁵ = 424120243289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424120243321.

It is not a weakly prime, because it can be changed into another prime (424120243721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212060121660 + 212060121661.

It is an arithmetic number, because the mean of its divisors is an integer number (212060121661).

Almost surely, 2^424120243321 is an apocalyptic number.

It is an amenable number.

424120243321 is a deficient number, since it is larger than the sum of its proper divisors (1).

424120243321 is an equidigital number, since it uses as much as digits as its factorization.

424120243321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 424120243321 its reverse (123342021424), we get a palindrome (547462264745).

The spelling of 424120243321 in words is "four hundred twenty-four billion, one hundred twenty million, two hundred forty-three thousand, three hundred twenty-one".