523319106217 has 2 divisors, whose sum is σ = 523319106218. Its totient is φ = 523319106216.

The previous prime is 523319106203. The next prime is 523319106269. The reversal of 523319106217 is 712601913325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431444040336 + 91875065881 = 656844^2 + 303109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523319106217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523319106217.

It is not a weakly prime, because it can be changed into another prime (523319106287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261659553108 + 261659553109.

It is an arithmetic number, because the mean of its divisors is an integer number (261659553109).

Almost surely, 2^523319106217 is an apocalyptic number.

It is an amenable number.

523319106217 is a deficient number, since it is larger than the sum of its proper divisors (1).

523319106217 is an equidigital number, since it uses as much as digits as its factorization.

523319106217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 523319106217 in words is "five hundred twenty-three billion, three hundred nineteen million, one hundred six thousand, two hundred seventeen".