130310745021521 has 2 divisors, whose sum is σ = 130310745021522. Its totient is φ = 130310745021520.

The previous prime is 130310745021397. The next prime is 130310745021551. The reversal of 130310745021521 is 125120547013031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209000000 + 31248536021521 = 9953000^2 + 5590039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130310745021521 is a prime.

It is not a weakly prime, because it can be changed into another prime (130310745021551) 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, 65155372510760 + 65155372510761.

It is an arithmetic number, because the mean of its divisors is an integer number (65155372510761).

Almost surely, 2^{130310745021521} is an apocalyptic number.

It is an amenable number.

130310745021521 is a deficient number, since it is larger than the sum of its proper divisors (1).

130310745021521 is an equidigital number, since it uses as much as digits as its factorization.

130310745021521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 130310745021521 in words is "one hundred thirty trillion, three hundred ten billion, seven hundred forty-five million, twenty-one thousand, five hundred twenty-one".