323230113212221 has 4 divisors (see below), whose sum is σ = 323865142904700. Its totient is φ = 322595083519744.

The previous prime is 323230113212213. The next prime is 323230113212261. The reversal of 323230113212221 is 122212311032323.

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 268204131009721 + 55025982202500 = 16376939^2 + 7417950^2 .

It is a cyclic number.

It is not a de Polignac number, because 323230113212221 - 2³ = 323230113212213 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 323230113212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323230113212261) 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, 317514845476 + ... + 317514846493.

It is an arithmetic number, because the mean of its divisors is an integer number (80966285726175).

Almost surely, 2^{323230113212221} is an apocalyptic number.

It is an amenable number.

323230113212221 is a deficient number, since it is larger than the sum of its proper divisors (635029692479).

323230113212221 is an equidigital number, since it uses as much as digits as its factorization.

323230113212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635029692478.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 323230113212221 its reverse (122212311032323), we get a palindrome (445442424244544).

The spelling of 323230113212221 in words is "three hundred twenty-three trillion, two hundred thirty billion, one hundred thirteen million, two hundred twelve thousand, two hundred twenty-one".