213321301 has 4 divisors (see below), whose sum is σ = 214091692. Its totient is φ = 212550912.

The previous prime is 213321289. The next prime is 213321307. The reversal of 213321301 is 103123312.

213321301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28633201 + 184688100 = 5351^2 + 13590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213321301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213321307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384780 + ... + 385333.

It is an arithmetic number, because the mean of its divisors is an integer number (53522923).

Almost surely, 2^213321301 is an apocalyptic number.

It is an amenable number.

213321301 is a deficient number, since it is larger than the sum of its proper divisors (770391).

213321301 is an equidigital number, since it uses as much as digits as its factorization.

213321301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770390.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213321301 is about 14605.5229622222. The cubic root of 213321301 is about 597.5093989640.

Adding to 213321301 its reverse (103123312), we get a palindrome (316444613).

The spelling of 213321301 in words is "two hundred thirteen million, three hundred twenty-one thousand, three hundred one".