130320320001021 has 6 divisors (see below), whose sum is σ = 188240462223710. Its totient is φ = 86880213334008.

The previous prime is 130320320001017. The next prime is 130320320001089. The reversal of 130320320001021 is 120100023023031.

130320320001021 is a `hidden beast` number, since 1 + 3 + 0 + 320 + 320 + 0 + 0 + 1 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 126470581695396 + 3849738305625 = 11245914^2 + 1962075^2 .

It is not a de Polignac number, because 130320320001021 - 2² = 130320320001017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130320320000985 and 130320320001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130320320001721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7240017777826 + ... + 7240017777843.

Almost surely, 2^{130320320001021} is an apocalyptic number.

It is an amenable number.

130320320001021 is a deficient number, since it is larger than the sum of its proper divisors (57920142222689).

130320320001021 is a wasteful number, since it uses less digits than its factorization.

130320320001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14480035555675 (or 14480035555672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 130320320001021 its reverse (120100023023031), we get a palindrome (250420343024052).

The spelling of 130320320001021 in words is "one hundred thirty trillion, three hundred twenty billion, three hundred twenty million, one thousand, twenty-one".