320031223 has 4 divisors (see below), whose sum is σ = 333945648. Its totient is φ = 306116800.

The previous prime is 320031221. The next prime is 320031247. The reversal of 320031223 is 322130023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322130023 = 821 ⋅392363.

It is a cyclic number.

It is not a de Polignac number, because 320031223 - 2¹ = 320031221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320031197 and 320031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320031221) 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, 6957178 + ... + 6957223.

It is an arithmetic number, because the mean of its divisors is an integer number (83486412).

Almost surely, 2^320031223 is an apocalyptic number.

320031223 is a deficient number, since it is larger than the sum of its proper divisors (13914425).

320031223 is a wasteful number, since it uses less digits than its factorization.

320031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914424.

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

The square root of 320031223 is about 17889.4165080922. The cubic root of 320031223 is about 684.0126240218.

Adding to 320031223 its reverse (322130023), we get a palindrome (642161246).

The spelling of 320031223 in words is "three hundred twenty million, thirty-one thousand, two hundred twenty-three".