1323243203 has 4 divisors (see below), whose sum is σ = 1325301768. Its totient is φ = 1321184640.

The previous prime is 1323243179. The next prime is 1323243211. The reversal of 1323243203 is 3023423231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023423231 = 191 ⋅15829441.

It is a cyclic number.

It is not a de Polignac number, because 1323243203 - 2⁶ = 1323243139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323243283) 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, 1028318 + ... + 1029603.

It is an arithmetic number, because the mean of its divisors is an integer number (331325442).

Almost surely, 2^1323243203 is an apocalyptic number.

1323243203 is a deficient number, since it is larger than the sum of its proper divisors (2058565).

1323243203 is an equidigital number, since it uses as much as digits as its factorization.

1323243203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058564.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1323243203 is about 36376.4099795458. The cubic root of 1323243203 is about 1097.8589767710.

Adding to 1323243203 its reverse (3023423231), we get a palindrome (4346666434).

The spelling of 1323243203 in words is "one billion, three hundred twenty-three million, two hundred forty-three thousand, two hundred three".