331323 has 4 divisors (see below), whose sum is σ = 441768. Its totient is φ = 220880.

The previous prime is 331319. The next prime is 331333. The reversal of 331323 is 323133.

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 331323 - 2² = 331319 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (331333) 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, 55218 + ... + 55223.

It is an arithmetic number, because the mean of its divisors is an integer number (110442).

2³³¹³²³ is an apocalyptic number.

331323 is a deficient number, since it is larger than the sum of its proper divisors (110445).

331323 is a wasteful number, since it uses less digits than its factorization.

331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110444.

The product of its digits is 162, while the sum is 15.

The square root of 331323 is about 575.6066365149. The cubic root of 331323 is about 69.1964575464.

Adding to 331323 its reverse (323133), we get a palindrome (654456).

The spelling of 331323 in words is "three hundred thirty-one thousand, three hundred twenty-three".