424131422321 has 2 divisors, whose sum is σ = 424131422322. Its totient is φ = 424131422320.

The previous prime is 424131422287. The next prime is 424131422339. The reversal of 424131422321 is 123224131424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238081540096 + 186049882225 = 487936^2 + 431335^2 .

It is a cyclic number.

It is not a de Polignac number, because 424131422321 - 2⁶ = 424131422257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (424131422381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212065711160 + 212065711161.

It is an arithmetic number, because the mean of its divisors is an integer number (212065711161).

Almost surely, 2^424131422321 is an apocalyptic number.

It is an amenable number.

424131422321 is a deficient number, since it is larger than the sum of its proper divisors (1).

424131422321 is an equidigital number, since it uses as much as digits as its factorization.

424131422321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 29.

Adding to 424131422321 its reverse (123224131424), we get a palindrome (547355553745).

The spelling of 424131422321 in words is "four hundred twenty-four billion, one hundred thirty-one million, four hundred twenty-two thousand, three hundred twenty-one".