1099999011 has 8 divisors (see below), whose sum is σ = 1506305104. Its totient is φ = 713512800.

The previous prime is 1099998997. The next prime is 1099999037. The reversal of 1099999011 is 1109999901.

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

It is not a de Polignac number, because 1099999011 - 2⁷ = 1099998883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099999111) 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, 4954840 + ... + 4955061.

It is an arithmetic number, because the mean of its divisors is an integer number (188288138).

Almost surely, 2^1099999011 is an apocalyptic number.

1099999011 is a deficient number, since it is larger than the sum of its proper divisors (406306093).

1099999011 is an equidigital number, since it uses as much as digits as its factorization.

1099999011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9909941.

The product of its (nonzero) digits is 59049, while the sum is 48.

The square root of 1099999011 is about 33166.2329938147. The cubic root of 1099999011 is about 1032.2798060851.

The spelling of 1099999011 in words is "one billion, ninety-nine million, nine hundred ninety-nine thousand, eleven".