105215513317 has 2 divisors, whose sum is σ = 105215513318. Its totient is φ = 105215513316.

The previous prime is 105215513311. The next prime is 105215513363. The reversal of 105215513317 is 713315512501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98476088481 + 6739424836 = 313809^2 + 82094^2 .

It is a cyclic number.

It is not a de Polignac number, because 105215513317 - 2²³ = 105207124709 is a prime.

It is a super-2 number, since 2×105215513317² (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 (105215513311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52607756658 + 52607756659.

It is an arithmetic number, because the mean of its divisors is an integer number (52607756659).

Almost surely, 2^105215513317 is an apocalyptic number.

It is an amenable number.

105215513317 is a deficient number, since it is larger than the sum of its proper divisors (1).

105215513317 is an equidigital number, since it uses as much as digits as its factorization.

105215513317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 34.

The spelling of 105215513317 in words is "one hundred five billion, two hundred fifteen million, five hundred thirteen thousand, three hundred seventeen".