323213321013221 has 4 divisors (see below), whose sum is σ = 324172410986892. Its totient is φ = 322254231039552.

The previous prime is 323213321013131. The next prime is 323213321013263. The reversal of 323213321013221 is 122310123312323.

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 223457951220100 + 99755369793121 = 14948510^2 + 9987761^2 .

It is a cyclic number.

It is not a de Polignac number, because 323213321013221 - 2¹⁸ = 323213320751077 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 (323213327013221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479544986330 + ... + 479544987003.

It is an arithmetic number, because the mean of its divisors is an integer number (81043102746723).

Almost surely, 2^{323213321013221} is an apocalyptic number.

It is an amenable number.

323213321013221 is a deficient number, since it is larger than the sum of its proper divisors (959089973671).

323213321013221 is an equidigital number, since it uses as much as digits as its factorization.

323213321013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959089973670.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 323213321013221 its reverse (122310123312323), we get a palindrome (445523444325544).

The spelling of 323213321013221 in words is "three hundred twenty-three trillion, two hundred thirteen billion, three hundred twenty-one million, thirteen thousand, two hundred twenty-one".