1323123003 has 24 divisors (see below), whose sum is σ = 1937138112. Its totient is φ = 870133488.

The previous prime is 1323122959. The next prime is 1323123031. The reversal of 1323123003 is 3003213231.

It is not a de Polignac number, because 1323123003 - 2⁸ = 1323122747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323123103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 868000 + ... + 869522.

It is an arithmetic number, because the mean of its divisors is an integer number (80714088).

Almost surely, 2^1323123003 is an apocalyptic number.

1323123003 is a deficient number, since it is larger than the sum of its proper divisors (614015109).

1323123003 is a wasteful number, since it uses less digits than its factorization.

1323123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1323123003 is about 36374.7577723894. The cubic root of 1323123003 is about 1097.8257335384.

Adding to 1323123003 its reverse (3003213231), we get a palindrome (4326336234).

The spelling of 1323123003 in words is "one billion, three hundred twenty-three million, one hundred twenty-three thousand, three".