130304202320 has 80 divisors (see below), whose sum is σ = 305680716432. Its totient is φ = 51655127040.

The previous prime is 130304202319. The next prime is 130304202331. The reversal of 130304202320 is 23202403031.

It can be written as a sum of positive squares in 8 ways, for example, as 1216335376 + 129087866944 = 34876^2 + 359288^2 .

It is a tau number, because it is divible by the number of its divisors (80).

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 = 130304202292 and 130304202301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4227284 + ... + 4257996.

Almost surely, 2^130304202320 is an apocalyptic number.

130304202320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130304202320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152840358216).

130304202320 is an abundant number, since it is smaller than the sum of its proper divisors (175376514112).

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

130304202320 is a wasteful number, since it uses less digits than its factorization.

130304202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31200 (or 31194 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 130304202320 its reverse (23202403031), we get a palindrome (153506605351).

The spelling of 130304202320 in words is "one hundred thirty billion, three hundred four million, two hundred two thousand, three hundred twenty".