331223 has 4 divisors (see below), whose sum is σ = 345648. Its totient is φ = 316800.

The previous prime is 331217. The next prime is 331231. The reversal of 331223 is 322133.

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 331223 - 2⁴ = 331207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331198 and 331207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (86412).

2³³¹²²³ is an apocalyptic number.

331223 is a deficient number, since it is larger than the sum of its proper divisors (14425).

331223 is a wasteful number, since it uses less digits than its factorization.

331223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14424.

The product of its digits is 108, while the sum is 14.

The square root of 331223 is about 575.5197650820. The cubic root of 331223 is about 69.1894952145.

Adding to 331223 its reverse (322133), we get a palindrome (653356).

It can be divided in two parts, 3312 and 23, that multiplied together give a square (76176 = 276²).

The spelling of 331223 in words is "three hundred thirty-one thousand, two hundred twenty-three".