520441121304109 has 2 divisors, whose sum is σ = 520441121304110. Its totient is φ = 520441121304108.

The previous prime is 520441121304059. The next prime is 520441121304127. The reversal of 520441121304109 is 901403121144025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520388347728484 + 52773575625 = 22812022^2 + 229725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520441121304109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520441121304149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260220560652054 + 260220560652055.

It is an arithmetic number, because the mean of its divisors is an integer number (260220560652055).

Almost surely, 2^{520441121304109} is an apocalyptic number.

It is an amenable number.

520441121304109 is a deficient number, since it is larger than the sum of its proper divisors (1).

520441121304109 is an equidigital number, since it uses as much as digits as its factorization.

520441121304109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 520441121304109 in words is "five hundred twenty trillion, four hundred forty-one billion, one hundred twenty-one million, three hundred four thousand, one hundred nine".