213330330330 has 128 divisors (see below), whose sum is σ = 561157583616. Its totient is φ = 51582873600.

The previous prime is 213330330289. The next prime is 213330330331. The reversal of 213330330330 is 33033033312.

It is a happy number.

It is a super-5 number, since 5×213330330330⁵ (a number of 58 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213330330330.

It is not an unprimeable number, because it can be changed into a prime (213330330331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19288162 + ... + 19299218.

It is an arithmetic number, because the mean of its divisors is an integer number (4384043622).

Almost surely, 2^213330330330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213330330330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280578791808).

213330330330 is an abundant number, since it is smaller than the sum of its proper divisors (347827253286).

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

213330330330 is a wasteful number, since it uses less digits than its factorization.

213330330330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952.

The product of its (nonzero) digits is 4374, while the sum is 24.

Adding to 213330330330 its reverse (33033033312), we get a palindrome (246363363642).

The spelling of 213330330330 in words is "two hundred thirteen billion, three hundred thirty million, three hundred thirty thousand, three hundred thirty".