430343344421 has 2 divisors, whose sum is σ = 430343344422. Its totient is φ = 430343344420.

The previous prime is 430343344367. The next prime is 430343344447. The reversal of 430343344421 is 124443343034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365770944100 + 64572400321 = 604790^2 + 254111^2 .

It is a cyclic number.

It is not a de Polignac number, because 430343344421 - 2¹⁸ = 430343082277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (430343344481) 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, 215171672210 + 215171672211.

It is an arithmetic number, because the mean of its divisors is an integer number (215171672211).

Almost surely, 2^430343344421 is an apocalyptic number.

It is an amenable number.

430343344421 is a deficient number, since it is larger than the sum of its proper divisors (1).

430343344421 is an equidigital number, since it uses as much as digits as its factorization.

430343344421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 430343344421 its reverse (124443343034), we get a palindrome (554786687455).

The spelling of 430343344421 in words is "four hundred thirty billion, three hundred forty-three million, three hundred forty-four thousand, four hundred twenty-one".