213030 has 40 divisors (see below), whose sum is σ = 574992. Its totient is φ = 56592.

The previous prime is 213029. The next prime is 213043. The reversal of 213030 is 30312.

It is a happy number.

213030 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 679 + ... + 941.

2²¹³⁰³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287496).

213030 is an abundant number, since it is smaller than the sum of its proper divisors (361962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213030 is a wasteful number, since it uses less digits than its factorization.

213030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 213030 is about 461.5517305785. The cubic root of 213030 is about 59.7237298660.

Adding to 213030 its reverse (30312), we get a palindrome (243342).

The spelling of 213030 in words is "two hundred thirteen thousand, thirty".