11111010009999 has 8 divisors (see below), whose sum is σ = 14961360013872. Its totient is φ = 7334000006400.

The previous prime is 11111010009973. The next prime is 11111010010019. The reversal of 11111010009999 is 99990001011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11111010009999 - 2²⁵ = 11110976455567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111010009999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111010009929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18334999714 + ... + 18335000319.

It is an arithmetic number, because the mean of its divisors is an integer number (1870170001734).

Almost surely, 2^{11111010009999} is an apocalyptic number.

11111010009999 is a deficient number, since it is larger than the sum of its proper divisors (3850350003873).

11111010009999 is a wasteful number, since it uses less digits than its factorization.

11111010009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36670000137.

The product of its (nonzero) digits is 6561, while the sum is 42.

The spelling of 11111010009999 in words is "eleven trillion, one hundred eleven billion, ten million, nine thousand, nine hundred ninety-nine".