304000201321 has 2 divisors, whose sum is σ = 304000201322. Its totient is φ = 304000201320.

The previous prime is 304000201303. The next prime is 304000201331. The reversal of 304000201321 is 123102000403.

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., 292962387600 + 11037813721 = 541260^2 + 105061^2 .

It is an emirp because it is prime and its reverse (123102000403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 304000201321 - 2⁹ = 304000200809 is a prime.

It is a super-2 number, since 2×304000201321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304000201295 and 304000201304.

It is not a weakly prime, because it can be changed into another prime (304000201301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152000100660 + 152000100661.

It is an arithmetic number, because the mean of its divisors is an integer number (152000100661).

Almost surely, 2^304000201321 is an apocalyptic number.

It is an amenable number.

304000201321 is a deficient number, since it is larger than the sum of its proper divisors (1).

304000201321 is an equidigital number, since it uses as much as digits as its factorization.

304000201321 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 304000201321 its reverse (123102000403), we get a palindrome (427102201724).

The spelling of 304000201321 in words is "three hundred four billion, two hundred one thousand, three hundred twenty-one".