320212303 has 4 divisors (see below), whose sum is σ = 321610840. Its totient is φ = 318813768.

The previous prime is 320212267. The next prime is 320212309. The reversal of 320212303 is 303212023.

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 320212303 - 2⁹ = 320211791 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 (320212309) 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, 698925 + ... + 699382.

It is an arithmetic number, because the mean of its divisors is an integer number (80402710).

Almost surely, 2^320212303 is an apocalyptic number.

320212303 is a deficient number, since it is larger than the sum of its proper divisors (1398537).

320212303 is a wasteful number, since it uses less digits than its factorization.

320212303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398536.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320212303 is about 17894.4768853409. The cubic root of 320212303 is about 684.1416089909.

Adding to 320212303 its reverse (303212023), we get a palindrome (623424326).

The spelling of 320212303 in words is "three hundred twenty million, two hundred twelve thousand, three hundred three".