999313103 has 2 divisors, whose sum is σ = 999313104. Its totient is φ = 999313102.

The previous prime is 999313099. The next prime is 999313121. The reversal of 999313103 is 301313999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999313103 - 2² = 999313099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999313153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499656551 + 499656552.

It is an arithmetic number, because the mean of its divisors is an integer number (499656552).

Almost surely, 2^999313103 is an apocalyptic number.

999313103 is a deficient number, since it is larger than the sum of its proper divisors (1).

999313103 is an equidigital number, since it uses as much as digits as its factorization.

999313103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 999313103 is about 31611.9139407914. The cubic root of 999313103 is about 999.7709818880.

The spelling of 999313103 in words is "nine hundred ninety-nine million, three hundred thirteen thousand, one hundred three".