304322312243 has 2 divisors, whose sum is σ = 304322312244. Its totient is φ = 304322312242.

The previous prime is 304322312167. The next prime is 304322312291. The reversal of 304322312243 is 342213223403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304322312243 is a prime.

It is a super-2 number, since 2×304322312243² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (304322312293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152161156121 + 152161156122.

It is an arithmetic number, because the mean of its divisors is an integer number (152161156122).

Almost surely, 2^304322312243 is an apocalyptic number.

304322312243 is a deficient number, since it is larger than the sum of its proper divisors (1).

304322312243 is an equidigital number, since it uses as much as digits as its factorization.

304322312243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 304322312243 its reverse (342213223403), we get a palindrome (646535535646).

The spelling of 304322312243 in words is "three hundred four billion, three hundred twenty-two million, three hundred twelve thousand, two hundred forty-three".