11111111011101 has 16 divisors (see below), whose sum is σ = 14892229222400. Its totient is φ = 7368714912240.

The previous prime is 11111111011081. The next prime is 11111111011153. The reversal of 11111111011101 is 10111011111111.

It is not a de Polignac number, because 11111111011101 - 2⁶ = 11111111011037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111111011501) 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, 1146096 + ... + 4851366.

It is an arithmetic number, because the mean of its divisors is an integer number (930764326400).

Almost surely, 2^{11111111011101} is an apocalyptic number.

It is an amenable number.

11111111011101 is a deficient number, since it is larger than the sum of its proper divisors (3781118211299).

11111111011101 is a wasteful number, since it uses less digits than its factorization.

11111111011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710496.

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 11111111011101 its reverse (10111011111111), we get a palindrome (21222122122212).

It can be divided in two parts, 1111111 and 1011101, that multiplied together give a palindrome (1123445443211).

The spelling of 11111111011101 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, eleven thousand, one hundred one".