320201003 has 4 divisors (see below), whose sum is σ = 320529720. Its totient is φ = 319872288.

The previous prime is 320200999. The next prime is 320201033. The reversal of 320201003 is 300102023.

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 320201003 - 2² = 320200999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320201033) 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, 162893 + ... + 164846.

It is an arithmetic number, because the mean of its divisors is an integer number (80132430).

Almost surely, 2^320201003 is an apocalyptic number.

320201003 is a deficient number, since it is larger than the sum of its proper divisors (328717).

320201003 is an equidigital number, since it uses as much as digits as its factorization.

320201003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328716.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 320201003 is about 17894.1611426744. The cubic root of 320201003 is about 684.1335613186.

Adding to 320201003 its reverse (300102023), we get a palindrome (620303026).

The spelling of 320201003 in words is "three hundred twenty million, two hundred one thousand, three".