1323000003 has 16 divisors (see below), whose sum is σ = 1900674720. Its totient is φ = 813732864.

The previous prime is 1322999999. The next prime is 1323000037. The reversal of 1323000003 is 3000003231.

It is a happy number.

It is not a de Polignac number, because 1323000003 - 2² = 1322999999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323000053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78643 + ... + 93971.

It is an arithmetic number, because the mean of its divisors is an integer number (118792170).

Almost surely, 2^1323000003 is an apocalyptic number.

1323000003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1323000003 is a deficient number, since it is larger than the sum of its proper divisors (577674717).

1323000003 is a wasteful number, since it uses less digits than its factorization.

1323000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17558.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 1323000003 is about 36373.0670001857. The cubic root of 1323000003 is about 1097.7917138367.

Adding to 1323000003 its reverse (3000003231), we get a palindrome (4323003234).

The spelling of 1323000003 in words is "one billion, three hundred twenty-three million, three", and thus it is an aban number.