1100001109999 has 16 divisors (see below), whose sum is σ = 1283169633696. Its totient is φ = 931858816000.

The previous prime is 1100001109993. The next prime is 1100001110003. The reversal of 1100001109999 is 9999011000011.

It is a cyclic number.

It is not a de Polignac number, because 1100001109999 - 2¹³ = 1100001101807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001109993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29101702 + ... + 29139475.

It is an arithmetic number, because the mean of its divisors is an integer number (80198102106).

Almost surely, 2^{1100001109999} is an apocalyptic number.

1100001109999 is a deficient number, since it is larger than the sum of its proper divisors (183168523697).

1100001109999 is a wasteful number, since it uses less digits than its factorization.

1100001109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58241306.

The product of its (nonzero) digits is 6561, while the sum is 40.

It can be divided in two parts, 1100001 and 109999, that added together give a square (1210000 = 1100²).

The spelling of 1100001109999 in words is "one trillion, one hundred billion, one million, one hundred nine thousand, nine hundred ninety-nine".