1323321020233 has 4 divisors (see below), whose sum is σ = 1329592684048. Its totient is φ = 1317049356420.

The previous prime is 1323321020209. The next prime is 1323321020239. The reversal of 1323321020233 is 3320201233231.

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 a de Polignac number, because none of the positive numbers 2^k-1323321020233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323321020198 and 1323321020207.

It is not an unprimeable number, because it can be changed into a prime (1323321020239) 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 3 ways as a sum of consecutive naturals, for example, 3135831591 + ... + 3135832012.

It is an arithmetic number, because the mean of its divisors is an integer number (332398171012).

Almost surely, 2^{1323321020233} is an apocalyptic number.

It is an amenable number.

1323321020233 is a deficient number, since it is larger than the sum of its proper divisors (6271663815).

1323321020233 is an equidigital number, since it uses as much as digits as its factorization.

1323321020233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271663814.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1323321020233 its reverse (3320201233231), we get a palindrome (4643522253464).

The spelling of 1323321020233 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-one million, twenty thousand, two hundred thirty-three".