430043320021 has 16 divisors (see below), whose sum is σ = 505085518080. Its totient is φ = 358415781120.

The previous prime is 430043320013. The next prime is 430043320027. The reversal of 430043320021 is 120023340034.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 430043320021 - 2³ = 430043320013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 430043319974 and 430043320001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430043320027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128740 + ... + 936301.

It is an arithmetic number, because the mean of its divisors is an integer number (31567844880).

Almost surely, 2^430043320021 is an apocalyptic number.

It is an amenable number.

430043320021 is a deficient number, since it is larger than the sum of its proper divisors (75042198059).

430043320021 is a wasteful number, since it uses less digits than its factorization.

430043320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066644.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 430043320021 its reverse (120023340034), we get a palindrome (550066660055).

The spelling of 430043320021 in words is "four hundred thirty billion, forty-three million, three hundred twenty thousand, twenty-one".