999999951110903 has 2 divisors, whose sum is σ = 999999951110904. Its totient is φ = 999999951110902.

The previous prime is 999999951110843. The next prime is 999999951110989. The reversal of 999999951110903 is 309011159999999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999999951110903 - 2⁸ = 999999951110647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999999951113903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999975555451 + 499999975555452.

It is an arithmetic number, because the mean of its divisors is an integer number (499999975555452).

Almost surely, 2^{999999951110903} is an apocalyptic number.

999999951110903 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999951110903 is an equidigital number, since it uses as much as digits as its factorization.

999999951110903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645700815, while the sum is 83.

The spelling of 999999951110903 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred fifty-one million, one hundred ten thousand, nine hundred three".