303040313 has 2 divisors, whose sum is σ = 303040314. Its totient is φ = 303040312.

The previous prime is 303040279. The next prime is 303040337. The reversal of 303040313 is 313040303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303038464 + 1849 = 17408^2 + 43^2 .

It is a cyclic number.

It is not a de Polignac number, because 303040313 - 2⁸ = 303040057 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 303040291 and 303040300.

It is not a weakly prime, because it can be changed into another prime (303040363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151520156 + 151520157.

It is an arithmetic number, because the mean of its divisors is an integer number (151520157).

Almost surely, 2^303040313 is an apocalyptic number.

It is an amenable number.

303040313 is a deficient number, since it is larger than the sum of its proper divisors (1).

303040313 is an equidigital number, since it uses as much as digits as its factorization.

303040313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 303040313 is about 17408.0531076855. The cubic root of 303040313 is about 671.6867819719.

Adding to 303040313 its reverse (313040303), we get a palindrome (616080616).

The spelling of 303040313 in words is "three hundred three million, forty thousand, three hundred thirteen".