320242003 has 8 divisors (see below), whose sum is σ = 321785856. Its totient is φ = 318702600.

The previous prime is 320241991. The next prime is 320242007. The reversal of 320242003 is 300242023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320242003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320242007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310098 + ... + 311128.

It is an arithmetic number, because the mean of its divisors is an integer number (40223232).

Almost surely, 2^320242003 is an apocalyptic number.

320242003 is a deficient number, since it is larger than the sum of its proper divisors (1543853).

320242003 is a wasteful number, since it uses less digits than its factorization.

320242003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 320242003 is about 17895.3067310957. The cubic root of 320242003 is about 684.1627599351.

Adding to 320242003 its reverse (300242023), we get a palindrome (620484026).

The spelling of 320242003 in words is "three hundred twenty million, two hundred forty-two thousand, three".