213332120302321 has 4 divisors (see below), whose sum is σ = 213336705868272. Its totient is φ = 213327534736372.

The previous prime is 213332120302289. The next prime is 213332120302351. The reversal of 213332120302321 is 123203021233312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213332120302321 - 2⁵ = 213332120302289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213332120302321.

It is not an unprimeable number, because it can be changed into a prime (213332120302351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2292713191 + ... + 2292806236.

It is an arithmetic number, because the mean of its divisors is an integer number (53334176467068).

Almost surely, 2^{213332120302321} is an apocalyptic number.

It is an amenable number.

213332120302321 is a deficient number, since it is larger than the sum of its proper divisors (4585565951).

213332120302321 is an equidigital number, since it uses as much as digits as its factorization.

213332120302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585565950.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 213332120302321 its reverse (123203021233312), we get a palindrome (336535141535633).

The spelling of 213332120302321 in words is "two hundred thirteen trillion, three hundred thirty-two billion, one hundred twenty million, three hundred two thousand, three hundred twenty-one".