323345321 has 16 divisors (see below), whose sum is σ = 370201104. Its totient is φ = 279773184.

The previous prime is 323345279. The next prime is 323345353. The reversal of 323345321 is 123543323.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1537600 + 321807721 = 1240^2 + 17939^2 .

It is a cyclic number.

It is not a de Polignac number, because 323345321 - 2¹⁰ = 323344297 is a prime.

It is a super-2 number, since 2×323345321² = 209104393225186082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323345371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53951 + ... + 59643.

It is an arithmetic number, because the mean of its divisors is an integer number (23137569).

Almost surely, 2^323345321 is an apocalyptic number.

It is an amenable number.

323345321 is a deficient number, since it is larger than the sum of its proper divisors (46855783).

323345321 is a wasteful number, since it uses less digits than its factorization.

323345321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980.

The product of its digits is 6480, while the sum is 26.

The square root of 323345321 is about 17981.8052764454. The cubic root of 323345321 is about 686.3656284294.

Adding to 323345321 its reverse (123543323), we get a palindrome (446888644).

The spelling of 323345321 in words is "three hundred twenty-three million, three hundred forty-five thousand, three hundred twenty-one".