1323203203 has 24 divisors (see below), whose sum is σ = 1554997392. Its totient is φ = 1122637824.

The previous prime is 1323203201. The next prime is 1323203251. The reversal of 1323203203 is 3023023231.

It is a happy number.

It is not a de Polignac number, because 1323203203 - 2¹ = 1323203201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323203201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3748275 + ... + 3748627.

It is an arithmetic number, because the mean of its divisors is an integer number (64791558).

Almost surely, 2^1323203203 is an apocalyptic number.

1323203203 is a deficient number, since it is larger than the sum of its proper divisors (231794189).

1323203203 is a wasteful number, since it uses less digits than its factorization.

1323203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 1323203203 is about 36375.8601685239. The cubic root of 1323203203 is about 1097.8479143547.

Adding to 1323203203 its reverse (3023023231), we get a palindrome (4346226434).

The spelling of 1323203203 in words is "one billion, three hundred twenty-three million, two hundred three thousand, two hundred three".