2321312003 has 4 divisors (see below), whose sum is σ = 2322043560. Its totient is φ = 2320580448.

The previous prime is 2321311933. The next prime is 2321312011. The reversal of 2321312003 is 3002131232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2321312003 - 2¹² = 2321307907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321312303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360998 + ... + 367371.

It is an arithmetic number, because the mean of its divisors is an integer number (580510890).

Almost surely, 2^2321312003 is an apocalyptic number.

2321312003 is a deficient number, since it is larger than the sum of its proper divisors (731557).

2321312003 is an equidigital number, since it uses as much as digits as its factorization.

2321312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731556.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2321312003 is about 48179.9958800330. The cubic root of 2321312003 is about 1324.0706910516.

Adding to 2321312003 its reverse (3002131232), we get a palindrome (5323443235).

The spelling of 2321312003 in words is "two billion, three hundred twenty-one million, three hundred twelve thousand, three".