11100101101111 has 4 divisors (see below), whose sum is σ = 12109201201224. Its totient is φ = 10091001001000.

The previous prime is 11100101101097. The next prime is 11100101101123. The reversal of 11100101101111 is 11110110100111.

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 11100101101111 - 2⁵ = 11100101101079 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 (11100101161111) 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, 504550050040 + ... + 504550050061.

It is an arithmetic number, because the mean of its divisors is an integer number (3027300300306).

Almost surely, 2^{11100101101111} is an apocalyptic number.

11100101101111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11100101101111 is a deficient number, since it is larger than the sum of its proper divisors (1009100100113).

11100101101111 is a wasteful number, since it uses less digits than its factorization.

11100101101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009100100112.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11100101101111 its reverse (11110110100111), we get a palindrome (22210211201222).

The spelling of 11100101101111 in words is "eleven trillion, one hundred billion, one hundred one million, one hundred one thousand, one hundred eleven".