1323221033 has 4 divisors (see below), whose sum is σ = 1351374720. Its totient is φ = 1295067348.

The previous prime is 1323221023. The next prime is 1323221057. The reversal of 1323221033 is 3301223231.

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 not a de Polignac number, because 1323221033 - 2⁴ = 1323221017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323220996 and 1323221014.

It is not an unprimeable number, because it can be changed into a prime (1323221023) 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, 14076773 + ... + 14076866.

It is an arithmetic number, because the mean of its divisors is an integer number (337843680).

Almost surely, 2^1323221033 is an apocalyptic number.

It is an amenable number.

1323221033 is a deficient number, since it is larger than the sum of its proper divisors (28153687).

1323221033 is an equidigital number, since it uses as much as digits as its factorization.

1323221033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28153686.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1323221033 is about 36376.1052478134. The cubic root of 1323221033 is about 1097.8528454543.

Adding to 1323221033 its reverse (3301223231), we get a palindrome (4624444264).

The spelling of 1323221033 in words is "one billion, three hundred twenty-three million, two hundred twenty-one thousand, thirty-three".