304321130 has 8 divisors (see below), whose sum is σ = 547778052. Its totient is φ = 121728448.

The previous prime is 304321117. The next prime is 304321139. The reversal of 304321130 is 31123403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 267682321 + 36638809 = 16361^2 + 6053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×304321130² = 185222700328953800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304321099 and 304321108.

It is not an unprimeable number, because it can be changed into a prime (304321139) 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, 15216047 + ... + 15216066.

Almost surely, 2^304321130 is an apocalyptic number.

304321130 is a deficient number, since it is larger than the sum of its proper divisors (243456922).

304321130 is a wasteful number, since it uses less digits than its factorization.

304321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30432120.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 304321130 is about 17444.8023777858. The cubic root of 304321130 is about 672.6317592610.

Adding to 304321130 its reverse (31123403), we get a palindrome (335444533).

The spelling of 304321130 in words is "three hundred four million, three hundred twenty-one thousand, one hundred thirty".