105521510317 has 2 divisors, whose sum is σ = 105521510318. Its totient is φ = 105521510316.

The previous prime is 105521510257. The next prime is 105521510459. The reversal of 105521510317 is 713015125501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72022993641 + 33498516676 = 268371^2 + 183026^2 .

It is a cyclic number.

It is not a de Polignac number, because 105521510317 - 2²⁷ = 105387292589 is a prime.

It is a super-2 number, since 2×105521510317² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105521517317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52760755158 + 52760755159.

It is an arithmetic number, because the mean of its divisors is an integer number (52760755159).

Almost surely, 2^105521510317 is an apocalyptic number.

It is an amenable number.

105521510317 is a deficient number, since it is larger than the sum of its proper divisors (1).

105521510317 is an equidigital number, since it uses as much as digits as its factorization.

105521510317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 31.

Adding to 105521510317 its reverse (713015125501), we get a palindrome (818536635818).

The spelling of 105521510317 in words is "one hundred five billion, five hundred twenty-one million, five hundred ten thousand, three hundred seventeen".