213204532530 has 96 divisors (see below), whose sum is σ = 595521787392. Its totient is φ = 48645583360.

The previous prime is 213204532511. The next prime is 213204532561. The reversal of 213204532530 is 35235402312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1665762 + ... + 1789181.

It is an arithmetic number, because the mean of its divisors is an integer number (6203351952).

Almost surely, 2^213204532530 is an apocalyptic number.

213204532530 is an abundant number, since it is smaller than the sum of its proper divisors (382317254862).

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

213204532530 is a wasteful number, since it uses less digits than its factorization.

213204532530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454992 (or 3454981 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 213204532530 its reverse (35235402312), we get a palindrome (248439934842).

The spelling of 213204532530 in words is "two hundred thirteen billion, two hundred four million, five hundred thirty-two thousand, five hundred thirty".