201330430321 has 2 divisors, whose sum is σ = 201330430322. Its totient is φ = 201330430320.

The previous prime is 201330430291. The next prime is 201330430361. The reversal of 201330430321 is 123034033102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199866220096 + 1464210225 = 447064^2 + 38265^2 .

It is a cyclic number.

It is not a de Polignac number, because 201330430321 - 2⁵ = 201330430289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201330430292 and 201330430301.

It is not a weakly prime, because it can be changed into another prime (201330430361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665215160 + 100665215161.

It is an arithmetic number, because the mean of its divisors is an integer number (100665215161).

Almost surely, 2^201330430321 is an apocalyptic number.

It is an amenable number.

201330430321 is a deficient number, since it is larger than the sum of its proper divisors (1).

201330430321 is an equidigital number, since it uses as much as digits as its factorization.

201330430321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 201330430321 its reverse (123034033102), we get a palindrome (324364463423).

The spelling of 201330430321 in words is "two hundred one billion, three hundred thirty million, four hundred thirty thousand, three hundred twenty-one".