213143322330 has 96 divisors (see below), whose sum is σ = 586928401488. Its totient is φ = 53480448000.

The previous prime is 213143322323. The next prime is 213143322367. The reversal of 213143322330 is 33223341312.

213143322330 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 4 + 3 + 322 + 330 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 125025180921 + 88118141409 = 353589^2 + 296847^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213143322294 and 213143322303.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6410950 + ... + 6444110.

Almost surely, 2^213143322330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213143322330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293464200744).

213143322330 is an abundant number, since it is smaller than the sum of its proper divisors (373785079158).

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

213143322330 is a wasteful number, since it uses less digits than its factorization.

213143322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37392 (or 37389 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 213143322330 its reverse (33223341312), we get a palindrome (246366663642).

The spelling of 213143322330 in words is "two hundred thirteen billion, one hundred forty-three million, three hundred twenty-two thousand, three hundred thirty".