200430442321 has 2 divisors, whose sum is σ = 200430442322. Its totient is φ = 200430442320.

The previous prime is 200430442291. The next prime is 200430442337. The reversal of 200430442321 is 123244034002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141951111696 + 58479330625 = 376764^2 + 241825^2 .

It is a cyclic number.

It is not a de Polignac number, because 200430442321 - 2¹⁹ = 200429918033 is a prime.

It is not a weakly prime, because it can be changed into another prime (200430442921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100215221160 + 100215221161.

It is an arithmetic number, because the mean of its divisors is an integer number (100215221161).

Almost surely, 2^200430442321 is an apocalyptic number.

It is an amenable number.

200430442321 is a deficient number, since it is larger than the sum of its proper divisors (1).

200430442321 is an equidigital number, since it uses as much as digits as its factorization.

200430442321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 200430442321 its reverse (123244034002), we get a palindrome (323674476323).

The spelling of 200430442321 in words is "two hundred billion, four hundred thirty million, four hundred forty-two thousand, three hundred twenty-one".