130320311321 has 2 divisors, whose sum is σ = 130320311322. Its totient is φ = 130320311320.

The previous prime is 130320311309. The next prime is 130320311357. The reversal of 130320311321 is 123113023031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125822731225 + 4497580096 = 354715^2 + 67064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130320311321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130320311293 and 130320311302.

It is not a weakly prime, because it can be changed into another prime (130320311021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65160155660 + 65160155661.

It is an arithmetic number, because the mean of its divisors is an integer number (65160155661).

Almost surely, 2^130320311321 is an apocalyptic number.

It is an amenable number.

130320311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

130320311321 is an equidigital number, since it uses as much as digits as its factorization.

130320311321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 130320311321 its reverse (123113023031), we get a palindrome (253433334352).

The spelling of 130320311321 in words is "one hundred thirty billion, three hundred twenty million, three hundred eleven thousand, three hundred twenty-one".