130320021200 has 60 divisors (see below), whose sum is σ = 331511153580. Its totient is φ = 49061652480.

The previous prime is 130320021187. The next prime is 130320021211. The reversal of 130320021200 is 2120023031.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4873715344 + 125446305856 = 69812^2 + 354184^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9575555 + ... + 9589154.

It is an arithmetic number, because the mean of its divisors is an integer number (5525185893).

Almost surely, 2^130320021200 is an apocalyptic number.

130320021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130320021200 is an abundant number, since it is smaller than the sum of its proper divisors (201191132380).

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

130320021200 is a wasteful number, since it uses less digits than its factorization.

130320021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19164744 (or 19164733 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 130320021200 its reverse (2120023031), we get a palindrome (132440044231).

The spelling of 130320021200 in words is "one hundred thirty billion, three hundred twenty million, twenty-one thousand, two hundred".