1323221331203 has 4 divisors (see below), whose sum is σ = 1324933131888. Its totient is φ = 1321509530520.

The previous prime is 1323221331167. The next prime is 1323221331233. The reversal of 1323221331203 is 3021331223231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1323221331203 - 2⁸ = 1323221330947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323221331233) 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, 855899183 + ... + 855900728.

It is an arithmetic number, because the mean of its divisors is an integer number (331233282972).

Almost surely, 2^{1323221331203} is an apocalyptic number.

1323221331203 is a deficient number, since it is larger than the sum of its proper divisors (1711800685).

1323221331203 is an equidigital number, since it uses as much as digits as its factorization.

1323221331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711800684.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1323221331203 its reverse (3021331223231), we get a palindrome (4344552554434).

The spelling of 1323221331203 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred three".