10320003 has 24 divisors (see below), whose sum is σ = 16219008. Its totient is φ = 6296832.

The previous prime is 10319999. The next prime is 10320029. The reversal of 10320003 is 30002301.

It is a happy number.

10320003 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10320003 - 2² = 10319999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10320203) 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, 4750 + ... + 6572.

It is an arithmetic number, because the mean of its divisors is an integer number (675792).

Almost surely, 2^10320003 is an apocalyptic number.

10320003 is a deficient number, since it is larger than the sum of its proper divisors (5899005).

10320003 is a wasteful number, since it uses less digits than its factorization.

10320003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 1880 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 10320003 is about 3212.4761477714. The cubic root of 10320003 is about 217.7174677872.

Adding to 10320003 its reverse (30002301), we get a palindrome (40322304).

The spelling of 10320003 in words is "ten million, three hundred twenty thousand, three".