1323323203 has 4 divisors (see below), whose sum is σ = 1345017088. Its totient is φ = 1301629320.

The previous prime is 1323323189. The next prime is 1323323219. The reversal of 1323323203 is 3023233231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023233231 = 167 ⋅18103193.

It is a cyclic number.

It is not a de Polignac number, because 1323323203 - 2⁵ = 1323323171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323323263) 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, 10846851 + ... + 10846972.

It is an arithmetic number, because the mean of its divisors is an integer number (336254272).

Almost surely, 2^1323323203 is an apocalyptic number.

1323323203 is a deficient number, since it is larger than the sum of its proper divisors (21693885).

1323323203 is an equidigital number, since it uses as much as digits as its factorization.

1323323203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21693884.

The product of its (nonzero) digits is 1944, while the sum is 22.

The square root of 1323323203 is about 36377.5095766601. The cubic root of 1323323203 is about 1097.8811009349.

Adding to 1323323203 its reverse (3023233231), we get a palindrome (4346556434).

The spelling of 1323323203 in words is "one billion, three hundred twenty-three million, three hundred twenty-three thousand, two hundred three".