213330331 has 8 divisors (see below), whose sum is σ = 227953440. Its totient is φ = 198937728.

The previous prime is 213330329. The next prime is 213330349. The reversal of 213330331 is 133033312.

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 213330331 - 2¹ = 213330329 is a prime.

It is a super-2 number, since 2×213330331² = 91019660249139122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213330299 and 213330308.

It is not an unprimeable number, because it can be changed into a prime (213330361) 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, 55711 + ... + 59416.

It is an arithmetic number, because the mean of its divisors is an integer number (28494180).

Almost surely, 2^213330331 is an apocalyptic number.

213330331 is a deficient number, since it is larger than the sum of its proper divisors (14623109).

213330331 is a wasteful number, since it uses less digits than its factorization.

213330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115253.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 213330331 is about 14605.8320885871. The cubic root of 213330331 is about 597.5178298047.

Adding to 213330331 its reverse (133033312), we get a palindrome (346363643).

The spelling of 213330331 in words is "two hundred thirteen million, three hundred thirty thousand, three hundred thirty-one".