130323131221 has 2 divisors, whose sum is σ = 130323131222. Its totient is φ = 130323131220.

The previous prime is 130323131209. The next prime is 130323131227. The reversal of 130323131221 is 122131323031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104319956196 + 26003175025 = 322986^2 + 161255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130323131221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130323131192 and 130323131201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130323131227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65161565610 + 65161565611.

It is an arithmetic number, because the mean of its divisors is an integer number (65161565611).

Almost surely, 2^130323131221 is an apocalyptic number.

It is an amenable number.

130323131221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130323131221 is an equidigital number, since it uses as much as digits as its factorization.

130323131221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 130323131221 its reverse (122131323031), we get a palindrome (252454454252).

The spelling of 130323131221 in words is "one hundred thirty billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".