303303213 has 12 divisors (see below), whose sum is σ = 461163040. Its totient is φ = 191559816.

The previous prime is 303303197. The next prime is 303303223. The reversal of 303303213 is 312303303.

It is not a de Polignac number, because 303303213 - 2⁴ = 303303197 is a prime.

It is a super-2 number, since 2×303303213² = 183985678032246738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303303223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886681 + ... + 887022.

Almost surely, 2^303303213 is an apocalyptic number.

It is an amenable number.

303303213 is a deficient number, since it is larger than the sum of its proper divisors (157859827).

303303213 is a wasteful number, since it uses less digits than its factorization.

303303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773728 (or 1773725 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 303303213 is about 17415.6025735546. The cubic root of 303303213 is about 671.8809645131.

Adding to 303303213 its reverse (312303303), we get a palindrome (615606516).

The spelling of 303303213 in words is "three hundred three million, three hundred three thousand, two hundred thirteen".