303242313 has 32 divisors (see below), whose sum is σ = 449003520. Its totient is φ = 180512640.

The previous prime is 303242293. The next prime is 303242333. The reversal of 303242313 is 313242303.

It is an interprime number because it is at equal distance from previous prime (303242293) and next prime (303242333).

It is not a de Polignac number, because 303242313 - 2⁶ = 303242249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 303242313.

It is not an unprimeable number, because it can be changed into a prime (303242333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654720 + ... + 655182.

It is an arithmetic number, because the mean of its divisors is an integer number (14031360).

Almost surely, 2^303242313 is an apocalyptic number.

303242313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

303242313 is a deficient number, since it is larger than the sum of its proper divisors (145761207).

303242313 is a wasteful number, since it uses less digits than its factorization.

303242313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 303242313 is about 17413.8540535977. The cubic root of 303242313 is about 671.8359926963.

Adding to 303242313 its reverse (313242303), we get a palindrome (616484616).

The spelling of 303242313 in words is "three hundred three million, two hundred forty-two thousand, three hundred thirteen".