213330333 has 4 divisors (see below), whose sum is σ = 284440448. Its totient is φ = 142220220.

The previous prime is 213330329. The next prime is 213330349. The reversal of 213330333 is 333033312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 213330333 - 2² = 213330329 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213334333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35555053 + ... + 35555058.

It is an arithmetic number, because the mean of its divisors is an integer number (71110112).

Almost surely, 2^213330333 is an apocalyptic number.

It is an amenable number.

213330333 is a deficient number, since it is larger than the sum of its proper divisors (71110115).

213330333 is an equidigital number, since it uses as much as digits as its factorization.

213330333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71110114.

The product of its (nonzero) digits is 1458, while the sum is 21.

The square root of 213330333 is about 14605.8321570529. The cubic root of 213330333 is about 597.5178316720.

Adding to 213330333 its reverse (333033312), we get a palindrome (546363645).

The spelling of 213330333 in words is "two hundred thirteen million, three hundred thirty thousand, three hundred thirty-three".