10321312003 has 4 divisors (see below), whose sum is σ = 10322176480. Its totient is φ = 10320447528.

The previous prime is 10321311941. The next prime is 10321312009. The reversal of 10321312003 is 30021312301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10321312003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10321312009) 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, 414075 + ... + 438292.

It is an arithmetic number, because the mean of its divisors is an integer number (2580544120).

Almost surely, 2^10321312003 is an apocalyptic number.

10321312003 is a deficient number, since it is larger than the sum of its proper divisors (864477).

10321312003 is an equidigital number, since it uses as much as digits as its factorization.

10321312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864476.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10321312003 its reverse (30021312301), we get a palindrome (40342624304).

The spelling of 10321312003 in words is "ten billion, three hundred twenty-one million, three hundred twelve thousand, three".