10320403 has 4 divisors (see below), whose sum is σ = 10411848. Its totient is φ = 10228960.

The previous prime is 10320391. The next prime is 10320437. The reversal of 10320403 is 30402301.

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 10320403 - 2⁵ = 10320371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10320203) 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, 45553 + ... + 45778.

It is an arithmetic number, because the mean of its divisors is an integer number (2602962).

Almost surely, 2^10320403 is an apocalyptic number.

10320403 is a deficient number, since it is larger than the sum of its proper divisors (91445).

10320403 is an equidigital number, since it uses as much as digits as its factorization.

10320403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91444.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 10320403 is about 3212.5384044397. The cubic root of 10320403 is about 217.7202806373.

Adding to 10320403 its reverse (30402301), we get a palindrome (40722704).

The spelling of 10320403 in words is "ten million, three hundred twenty thousand, four hundred three".