1100111099 has 4 divisors (see below), whose sum is σ = 1100213136. Its totient is φ = 1100009064.

The previous prime is 1100111071. The next prime is 1100111113. The reversal of 1100111099 is 9901110011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1100111099 - 2²⁴ = 1083333883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100111029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32639 + ... + 57144.

It is an arithmetic number, because the mean of its divisors is an integer number (275053284).

Almost surely, 2^1100111099 is an apocalyptic number.

1100111099 is a deficient number, since it is larger than the sum of its proper divisors (102037).

1100111099 is an equidigital number, since it uses as much as digits as its factorization.

1100111099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102036.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 1100111099 is about 33167.9227417093. The cubic root of 1100111099 is about 1032.3148674042.

The spelling of 1100111099 in words is "one billion, one hundred million, one hundred eleven thousand, ninety-nine".