320113303 has 4 divisors (see below), whose sum is σ = 322557048. Its totient is φ = 317669560.

The previous prime is 320113243. The next prime is 320113309. The reversal of 320113303 is 303311023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303311023 = 211 ⋅1437493.

It is a cyclic number.

It is not a de Polignac number, because 320113303 - 2¹³ = 320105111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320113309) 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, 1221676 + ... + 1221937.

It is an arithmetic number, because the mean of its divisors is an integer number (80639262).

Almost surely, 2^320113303 is an apocalyptic number.

320113303 is a deficient number, since it is larger than the sum of its proper divisors (2443745).

320113303 is a wasteful number, since it uses less digits than its factorization.

320113303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443744.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 320113303 is about 17891.7104548447. The cubic root of 320113303 is about 684.0710963968.

Adding to 320113303 its reverse (303311023), we get a palindrome (623424326).

The spelling of 320113303 in words is "three hundred twenty million, one hundred thirteen thousand, three hundred three".