213212305321 has 8 divisors (see below), whose sum is σ = 225924353280. Its totient is φ = 200519162688.

The previous prime is 213212305279. The next prime is 213212305421. The reversal of 213212305321 is 123503212312.

213212305321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213212305321 - 2²⁹ = 212675434409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213212305421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4703101 + ... + 4748218.

It is an arithmetic number, because the mean of its divisors is an integer number (28240544160).

Almost surely, 2^213212305321 is an apocalyptic number.

It is an amenable number.

213212305321 is a deficient number, since it is larger than the sum of its proper divisors (12712047959).

213212305321 is a wasteful number, since it uses less digits than its factorization.

213212305321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452663.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 213212305321 its reverse (123503212312), we get a palindrome (336715517633).

The spelling of 213212305321 in words is "two hundred thirteen billion, two hundred twelve million, three hundred five thousand, three hundred twenty-one".