320341503 has 16 divisors (see below), whose sum is σ = 436613760. Its totient is φ = 208852896.

The previous prime is 320341481. The next prime is 320341513. The reversal of 320341503 is 305143023.

It is not a de Polignac number, because 320341503 - 2¹⁰ = 320340479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320341503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320341513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30276 + ... + 39462.

It is an arithmetic number, because the mean of its divisors is an integer number (27288360).

Almost surely, 2^320341503 is an apocalyptic number.

320341503 is a deficient number, since it is larger than the sum of its proper divisors (116272257).

320341503 is a wasteful number, since it uses less digits than its factorization.

320341503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9446.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 320341503 is about 17898.0865737095. The cubic root of 320341503 is about 684.2336096310.

Adding to 320341503 its reverse (305143023), we get a palindrome (625484526).

The spelling of 320341503 in words is "three hundred twenty million, three hundred forty-one thousand, five hundred three".