1011111100099 has 4 divisors (see below), whose sum is σ = 1011148400464. Its totient is φ = 1011073799736.

The previous prime is 1011111100093. The next prime is 1011111100121. The reversal of 1011111100099 is 9900011111101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011111100099 - 2³³ = 1002521165507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011111100093) 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, 18609492 + ... + 18663745.

It is an arithmetic number, because the mean of its divisors is an integer number (252787100116).

Almost surely, 2^{1011111100099} is an apocalyptic number.

1011111100099 is a deficient number, since it is larger than the sum of its proper divisors (37300365).

1011111100099 is an equidigital number, since it uses as much as digits as its factorization.

1011111100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37300364.

The product of its (nonzero) digits is 81, while the sum is 25.

The spelling of 1011111100099 in words is "one trillion, eleven billion, one hundred eleven million, one hundred thousand, ninety-nine".