323120225 has 12 divisors (see below), whose sum is σ = 401661420. Its totient is φ = 257856000.

The previous prime is 323120201. The next prime is 323120227. The reversal of 323120225 is 522021323.

It can be written as a sum of positive squares in 6 ways, for example, as 38725729 + 284394496 = 6223^2 + 16864^2 .

It is not a de Polignac number, because 323120225 - 2¹⁴ = 323103841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323120197 and 323120206.

It is not an unprimeable number, because it can be changed into a prime (323120227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5576 + ... + 26025.

It is an arithmetic number, because the mean of its divisors is an integer number (33471785).

Almost surely, 2^323120225 is an apocalyptic number.

It is an amenable number.

323120225 is a deficient number, since it is larger than the sum of its proper divisors (78541195).

323120225 is a wasteful number, since it uses less digits than its factorization.

323120225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32020 (or 32015 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 323120225 is about 17975.5451934010. The cubic root of 323120225 is about 686.2063209105.

Adding to 323120225 its reverse (522021323), we get a palindrome (845141548).

The spelling of 323120225 in words is "three hundred twenty-three million, one hundred twenty thousand, two hundred twenty-five".