233430021330 has 128 divisors (see below), whose sum is σ = 622325037312. Its totient is φ = 56027840000.

The previous prime is 233430021329. The next prime is 233430021347. The reversal of 233430021330 is 33120034332.

It is a happy number.

233430021330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 233430021330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4003990 + ... + 4061870.

It is an arithmetic number, because the mean of its divisors is an integer number (4861914354).

Almost surely, 2^233430021330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233430021330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311162518656).

233430021330 is an abundant number, since it is smaller than the sum of its proper divisors (388895015982).

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

233430021330 is a wasteful number, since it uses less digits than its factorization.

233430021330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58025 (or 58003 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 233430021330 its reverse (33120034332), we get a palindrome (266550055662).

It can be divided in two parts, 23343002 and 1330, that added together give a palindrome (23344332).

The spelling of 233430021330 in words is "two hundred thirty-three billion, four hundred thirty million, twenty-one thousand, three hundred thirty".