520122315052313 has 2 divisors, whose sum is σ = 520122315052314. Its totient is φ = 520122315052312.

The previous prime is 520122315052289. The next prime is 520122315052331. The reversal of 520122315052313 is 313250513221025.

Together with next prime (520122315052331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330088287662224 + 190034027390089 = 18168332^2 + 13785283^2 .

It is a cyclic number.

It is not a de Polignac number, because 520122315052313 - 2⁴⁴ = 502530129007897 is a prime.

It is not a weakly prime, because it can be changed into another prime (520122315052013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260061157526156 + 260061157526157.

It is an arithmetic number, because the mean of its divisors is an integer number (260061157526157).

Almost surely, 2^{520122315052313} is an apocalyptic number.

It is an amenable number.

520122315052313 is a deficient number, since it is larger than the sum of its proper divisors (1).

520122315052313 is an equidigital number, since it uses as much as digits as its factorization.

520122315052313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 520122315052313 its reverse (313250513221025), we get a palindrome (833372828273338).

The spelling of 520122315052313 in words is "five hundred twenty trillion, one hundred twenty-two billion, three hundred fifteen million, fifty-two thousand, three hundred thirteen".