1323203320221 has 8 divisors (see below), whose sum is σ = 1794173993760. Its totient is φ = 867184096752.

The previous prime is 1323203320217. The next prime is 1323203320223. The reversal of 1323203320221 is 1220233023231.

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

It is not a de Polignac number, because 1323203320221 - 2² = 1323203320217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323203320191 and 1323203320200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323203320223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737862310 + ... + 3737862663.

It is an arithmetic number, because the mean of its divisors is an integer number (224271749220).

Almost surely, 2^{1323203320221} is an apocalyptic number.

It is an amenable number.

1323203320221 is a deficient number, since it is larger than the sum of its proper divisors (470970673539).

1323203320221 is an equidigital number, since it uses as much as digits as its factorization.

1323203320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475725035.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1323203320221 its reverse (1220233023231), we get a palindrome (2543436343452).

The spelling of 1323203320221 in words is "one trillion, three hundred twenty-three billion, two hundred three million, three hundred twenty thousand, two hundred twenty-one".