11001101111111 has 4 divisors (see below), whose sum is σ = 11001307135224. Its totient is φ = 11000895087000.

The previous prime is 11001101111101. The next prime is 11001101111113. The reversal of 11001101111111 is 11111110110011.

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 11001101111111 - 2³⁸ = 10726223204167 is a prime.

It is a Duffinian number.

11001101111111 is a modest number, since divided by 1111111 gives 1100110 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11001101111092 and 11001101111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001101111113) 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, 102931940 + ... + 103038761.

It is an arithmetic number, because the mean of its divisors is an integer number (2750326783806).

Almost surely, 2^{11001101111111} is an apocalyptic number.

11001101111111 is a deficient number, since it is larger than the sum of its proper divisors (206024113).

11001101111111 is an equidigital number, since it uses as much as digits as its factorization.

11001101111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206024112.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11001101111111 its reverse (11111110110011), we get a palindrome (22112211221122).

The spelling of 11001101111111 in words is "eleven trillion, one billion, one hundred one million, one hundred eleven thousand, one hundred eleven".