323520130 has 16 divisors (see below), whose sum is σ = 587491704. Its totient is φ = 128262400.

The previous prime is 323520083. The next prime is 323520133. The reversal of 323520130 is 31025323.

It can be written as a sum of positive squares in 4 ways, for example, as 146337409 + 177182721 = 12097^2 + 13311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 323520098 and 323520107.

It is not an unprimeable number, because it can be changed into a prime (323520133) 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, 142021 + ... + 144280.

Almost surely, 2^323520130 is an apocalyptic number.

323520130 is a deficient number, since it is larger than the sum of its proper divisors (263971574).

323520130 is a wasteful number, since it uses less digits than its factorization.

323520130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286421.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 323520130 is about 17986.6653385223. The cubic root of 323520130 is about 686.4892952606.

Adding to 323520130 its reverse (31025323), we get a palindrome (354545453).

The spelling of 323520130 in words is "three hundred twenty-three million, five hundred twenty thousand, one hundred thirty".