19999011110011 has 4 divisors (see below), whose sum is σ = 20688632182800. Its totient is φ = 19309390037224.

The previous prime is 19999011110003. The next prime is 19999011110053. The reversal of 19999011110011 is 11001111099991.

It is a happy number.

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 19999011110011 - 2³ = 19999011110003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19999011110011.

It is not an unprimeable number, because it can be changed into a prime (19999011110311) 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, 344810536351 + ... + 344810536408.

It is an arithmetic number, because the mean of its divisors is an integer number (5172158045700).

Almost surely, 2^{19999011110011} is an apocalyptic number.

19999011110011 is a deficient number, since it is larger than the sum of its proper divisors (689621072789).

19999011110011 is an equidigital number, since it uses as much as digits as its factorization.

19999011110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689621072788.

The product of its (nonzero) digits is 6561, while the sum is 43.

The spelling of 19999011110011 in words is "nineteen trillion, nine hundred ninety-nine billion, eleven million, one hundred ten thousand, eleven".