1001111101099 has 4 divisors (see below), whose sum is σ = 1044637670736. Its totient is φ = 957584531464.

The previous prime is 1001111101087. The next prime is 1001111101121. The reversal of 1001111101099 is 9901011111001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001111101099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001111101009) 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, 21763284784 + ... + 21763284829.

It is an arithmetic number, because the mean of its divisors is an integer number (261159417684).

Almost surely, 2^{1001111101099} is an apocalyptic number.

1001111101099 is a deficient number, since it is larger than the sum of its proper divisors (43526569637).

1001111101099 is an equidigital number, since it uses as much as digits as its factorization.

1001111101099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43526569636.

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

The spelling of 1001111101099 in words is "one trillion, one billion, one hundred eleven million, one hundred one thousand, ninety-nine".