130606421321 has 2 divisors, whose sum is σ = 130606421322. Its totient is φ = 130606421320.

The previous prime is 130606421317. The next prime is 130606421347. The reversal of 130606421321 is 123124606031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66072132025 + 64534289296 = 257045^2 + 254036^2 .

It is a cyclic number.

It is not a de Polignac number, because 130606421321 - 2² = 130606421317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (130606429321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65303210660 + 65303210661.

It is an arithmetic number, because the mean of its divisors is an integer number (65303210661).

Almost surely, 2^130606421321 is an apocalyptic number.

It is an amenable number.

130606421321 is a deficient number, since it is larger than the sum of its proper divisors (1).

130606421321 is an equidigital number, since it uses as much as digits as its factorization.

130606421321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 130606421321 in words is "one hundred thirty billion, six hundred six million, four hundred twenty-one thousand, three hundred twenty-one".