1011111099 has 8 divisors (see below), whose sum is σ = 1384584720. Its totient is φ = 655855776.

The previous prime is 1011111083. The next prime is 1011111133. The reversal of 1011111099 is 9901111101.

1011111099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011111099 - 2⁴ = 1011111083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011112099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4554444 + ... + 4554665.

It is an arithmetic number, because the mean of its divisors is an integer number (173073090).

Almost surely, 2^1011111099 is an apocalyptic number.

1011111099 is a deficient number, since it is larger than the sum of its proper divisors (373473621).

1011111099 is an equidigital number, since it uses as much as digits as its factorization.

1011111099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9109149.

The product of its (nonzero) digits is 81, while the sum is 24.

The square root of 1011111099 is about 31797.9731901264. The cubic root of 1011111099 is about 1003.6900663285.

The spelling of 1011111099 in words is "one billion, eleven million, one hundred eleven thousand, ninety-nine".