323531361 has 8 divisors (see below), whose sum is σ = 479305760. Its totient is φ = 215687556.

The previous prime is 323531359. The next prime is 323531371. The reversal of 323531361 is 163135323.

It is a happy number.

It is not a de Polignac number, because 323531361 - 2¹ = 323531359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11982643 = 323531361 / (3 + 2 + 3 + 5 + 3 + 1 + 3 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323531311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5991295 + ... + 5991348.

It is an arithmetic number, because the mean of its divisors is an integer number (59913220).

Almost surely, 2^323531361 is an apocalyptic number.

It is an amenable number.

323531361 is a deficient number, since it is larger than the sum of its proper divisors (155774399).

323531361 is a wasteful number, since it uses less digits than its factorization.

323531361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982652 (or 11982646 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 323531361 is about 17986.9775393199. The cubic root of 323531361 is about 686.4972389931.

Adding to 323531361 its reverse (163135323), we get a palindrome (486666684).

It can be divided in two parts, 3235 and 31361, that added together give a square (34596 = 186²).

The spelling of 323531361 in words is "three hundred twenty-three million, five hundred thirty-one thousand, three hundred sixty-one".