9999313109 has 2 divisors, whose sum is σ = 9999313110. Its totient is φ = 9999313108.

The previous prime is 9999313099. The next prime is 9999313117. The reversal of 9999313109 is 9013139999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9870422500 + 128890609 = 99350^2 + 11353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999313109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999313169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999656554 + 4999656555.

It is an arithmetic number, because the mean of its divisors is an integer number (4999656555).

Almost surely, 2^9999313109 is an apocalyptic number.

It is an amenable number.

9999313109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999313109 is an equidigital number, since it uses as much as digits as its factorization.

9999313109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 531441, while the sum is 53.

The square root of 9999313109 is about 99996.5654860206. The cubic root of 9999313109 is about 2154.3853601758.

The spelling of 9999313109 in words is "nine billion, nine hundred ninety-nine million, three hundred thirteen thousand, one hundred nine".