230001220321 has 2 divisors, whose sum is σ = 230001220322. Its totient is φ = 230001220320.

The previous prime is 230001220313. The next prime is 230001220369. The reversal of 230001220321 is 123022100032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229978752721 + 22467600 = 479561^2 + 4740^2 .

It is a cyclic number.

It is not a de Polignac number, because 230001220321 - 2³ = 230001220313 is a prime.

It is a super-2 number, since 2×230001220321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230001220295 and 230001220304.

It is not a weakly prime, because it can be changed into another prime (230001220021) 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, 115000610160 + 115000610161.

It is an arithmetic number, because the mean of its divisors is an integer number (115000610161).

Almost surely, 2^230001220321 is an apocalyptic number.

It is an amenable number.

230001220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

230001220321 is an equidigital number, since it uses as much as digits as its factorization.

230001220321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 230001220321 its reverse (123022100032), we get a palindrome (353023320353).

The spelling of 230001220321 in words is "two hundred thirty billion, one million, two hundred twenty thousand, three hundred twenty-one".