1099011111 has 16 divisors (see below), whose sum is σ = 1641767808. Its totient is φ = 648064800.

The previous prime is 1099011097. The next prime is 1099011119. The reversal of 1099011111 is 1111109901.

It is not a de Polignac number, because 1099011111 - 2¹⁵ = 1098978343 is a prime.

1099011111 is a modest number, since divided by 11111 gives 10990 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099011119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448825 + ... + 451266.

It is an arithmetic number, because the mean of its divisors is an integer number (102610488).

Almost surely, 2^1099011111 is an apocalyptic number.

1099011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1099011111 is a deficient number, since it is larger than the sum of its proper divisors (542756697).

1099011111 is a wasteful number, since it uses less digits than its factorization.

1099011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900142.

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

The square root of 1099011111 is about 33151.3364888959. The cubic root of 1099011111 is about 1031.9706862129.

The spelling of 1099011111 in words is "one billion, ninety-nine million, eleven thousand, one hundred eleven".