130320322020 has 72 divisors (see below), whose sum is σ = 451777120704. Its totient is φ = 29787501888.

The previous prime is 130320321983. The next prime is 130320322021. The reversal of 130320322020 is 20223023031.

It is a happy number.

130320322020 is a `hidden beast` number, since 1 + 3 + 0 + 320 + 322 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 130320321984 and 130320322002.

It is not an unprimeable number, because it can be changed into a prime (130320322021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51713154 + ... + 51715673.

It is an arithmetic number, because the mean of its divisors is an integer number (6274682232).

Almost surely, 2^130320322020 is an apocalyptic number.

130320322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130320322020 is an abundant number, since it is smaller than the sum of its proper divisors (321456798684).

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

130320322020 is a wasteful number, since it uses less digits than its factorization.

130320322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103428849 (or 103428844 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 130320322020 its reverse (20223023031), we get a palindrome (150543345051).

The spelling of 130320322020 in words is "one hundred thirty billion, three hundred twenty million, three hundred twenty-two thousand, twenty".