323223121 has 4 divisors (see below), whose sum is σ = 348086452. Its totient is φ = 298359792.

The previous prime is 323223119. The next prime is 323223133. The reversal of 323223121 is 121322323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121322323 = 4001 ⋅30323.

It can be written as a sum of positive squares in 2 ways, for example, as 76387600 + 246835521 = 8740^2 + 15711^2 .

It is a cyclic number.

It is not a de Polignac number, because 323223121 - 2¹ = 323223119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323223161) 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, 12431646 + ... + 12431671.

It is an arithmetic number, because the mean of its divisors is an integer number (87021613).

Almost surely, 2^323223121 is an apocalyptic number.

It is an amenable number.

323223121 is a deficient number, since it is larger than the sum of its proper divisors (24863331).

323223121 is a wasteful number, since it uses less digits than its factorization.

323223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24863330.

The product of its digits is 432, while the sum is 19.

The square root of 323223121 is about 17978.4070762679. The cubic root of 323223121 is about 686.2791528232.

Adding to 323223121 its reverse (121322323), we get a palindrome (444545444).

The spelling of 323223121 in words is "three hundred twenty-three million, two hundred twenty-three thousand, one hundred twenty-one".