11001111120111 has 24 divisors (see below), whose sum is σ = 17063206118784. Its totient is φ = 6286254063600.

The previous prime is 11001111120107. The next prime is 11001111120133. The reversal of 11001111120111 is 11102111110011.

It is not a de Polignac number, because 11001111120111 - 2² = 11001111120107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001111121111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9825166 + ... + 10887428.

It is an arithmetic number, because the mean of its divisors is an integer number (710966921616).

Almost surely, 2^{11001111120111} is an apocalyptic number.

11001111120111 is a deficient number, since it is larger than the sum of its proper divisors (6062094998673).

11001111120111 is a wasteful number, since it uses less digits than its factorization.

11001111120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132731 (or 1132724 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11001111120111 its reverse (11102111110011), we get a palindrome (22103222230122).

It can be divided in two parts, 1100111 and 1120111, that added together give a palindrome (2220222).

The spelling of 11001111120111 in words is "eleven trillion, one billion, one hundred eleven million, one hundred twenty thousand, one hundred eleven".