999100011 has 32 divisors (see below), whose sum is σ = 1683877888. Its totient is φ = 512749440.

The previous prime is 999099991. The next prime is 999100019. The reversal of 999100011 is 110001999.

It is not a de Polignac number, because 999100011 - 2⁹ = 999099499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999100019) 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 in 31 ways as a sum of consecutive naturals, for example, 39355 + ... + 59556.

It is an arithmetic number, because the mean of its divisors is an integer number (52621184).

Almost surely, 2^999100011 is an apocalyptic number.

999100011 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

999100011 is a deficient number, since it is larger than the sum of its proper divisors (684777877).

999100011 is a wasteful number, since it uses less digits than its factorization.

999100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98971.

The product of its (nonzero) digits is 729, while the sum is 30.

The square root of 999100011 is about 31608.5433229689. The cubic root of 999100011 is about 999.6999136238.

The spelling of 999100011 in words is "nine hundred ninety-nine million, one hundred thousand, eleven".