130303820 has 24 divisors (see below), whose sum is σ = 274387344. Its totient is φ = 51978816.

The previous prime is 130303813. The next prime is 130303853. The reversal of 130303820 is 28303031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 130303792 and 130303801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274 + ... + 16193.

It is an arithmetic number, because the mean of its divisors is an integer number (11432806).

Almost surely, 2^130303820 is an apocalyptic number.

130303820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130303820 is an abundant number, since it is smaller than the sum of its proper divisors (144083524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130303820 is a wasteful number, since it uses less digits than its factorization.

130303820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17849 (or 17847 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 130303820 is about 11415.0698640000. The cubic root of 130303820 is about 506.9740334521.

Adding to 130303820 its reverse (28303031), we get a palindrome (158606851).

The spelling of 130303820 in words is "one hundred thirty million, three hundred three thousand, eight hundred twenty".