130304321 has 8 divisors (see below), whose sum is σ = 148988544. Its totient is φ = 111637440.

The previous prime is 130304281. The next prime is 130304329. The reversal of 130304321 is 123403031.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130304321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130304321.

It is not an unprimeable number, because it can be changed into a prime (130304329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25241 + ... + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (18623568).

Almost surely, 2^130304321 is an apocalyptic number.

It is an amenable number.

130304321 is a deficient number, since it is larger than the sum of its proper divisors (18684223).

130304321 is an equidigital number, since it uses as much as digits as its factorization.

130304321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671.

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

The square root of 130304321 is about 11415.0918086540. The cubic root of 130304321 is about 506.9746831994.

Adding to 130304321 its reverse (123403031), we get a palindrome (253707352).

The spelling of 130304321 in words is "one hundred thirty million, three hundred four thousand, three hundred twenty-one".