430144430021 has 2 divisors, whose sum is σ = 430144430022. Its totient is φ = 430144430020.

The previous prime is 430144429999. The next prime is 430144430041. The reversal of 430144430021 is 120034441034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401466700996 + 28677729025 = 633614^2 + 169345^2 .

It is a cyclic number.

It is not a de Polignac number, because 430144430021 - 2¹⁰ = 430144428997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (430144430041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215072215010 + 215072215011.

It is an arithmetic number, because the mean of its divisors is an integer number (215072215011).

Almost surely, 2^430144430021 is an apocalyptic number.

It is an amenable number.

430144430021 is a deficient number, since it is larger than the sum of its proper divisors (1).

430144430021 is an equidigital number, since it uses as much as digits as its factorization.

430144430021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 430144430021 its reverse (120034441034), we get a palindrome (550178871055).

The spelling of 430144430021 in words is "four hundred thirty billion, one hundred forty-four million, four hundred thirty thousand, twenty-one".