303213 has 8 divisors (see below), whose sum is σ = 412128. Its totient is φ = 198224.

The previous prime is 303187. The next prime is 303217. The reversal of 303213 is 312303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 303213 - 2¹⁰ = 302189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795 + ... + 1112.

It is an arithmetic number, because the mean of its divisors is an integer number (51516).

2³⁰³²¹³ is an apocalyptic number.

It is an amenable number.

303213 is a deficient number, since it is larger than the sum of its proper divisors (108915).

303213 is a wasteful number, since it uses less digits than its factorization.

303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 303213 is about 550.6478003225. The cubic root of 303213 is about 67.1814344263.

Adding to 303213 its reverse (312303), we get a palindrome (615516).

The spelling of 303213 in words is "three hundred three thousand, two hundred thirteen".