213230334330 has 128 divisors (see below), whose sum is σ = 614111904000. Its totient is φ = 52336772352.

The previous prime is 213230334319. The next prime is 213230334347. The reversal of 213230334330 is 33433032312.

It is a happy number.

213230334330 is a `hidden beast` number, since 2 + 1 + 323 + 0 + 3 + 3 + 4 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213230334294 and 213230334303.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1137957 + ... + 1312023.

It is an arithmetic number, because the mean of its divisors is an integer number (4797749250).

Almost surely, 2^213230334330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213230334330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307055952000).

213230334330 is an abundant number, since it is smaller than the sum of its proper divisors (400881569670).

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

213230334330 is a wasteful number, since it uses less digits than its factorization.

213230334330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174445 (or 174439 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 27.

Adding to 213230334330 its reverse (33433032312), we get a palindrome (246663366642).

The spelling of 213230334330 in words is "two hundred thirteen billion, two hundred thirty million, three hundred thirty-four thousand, three hundred thirty".