1101100011111 has 16 divisors (see below), whose sum is σ = 1631588556000. Its totient is φ = 733918497984.

The previous prime is 1101100011103. The next prime is 1101100011133. The reversal of 1101100011111 is 1111100011011.

It is not a de Polignac number, because 1101100011111 - 2³ = 1101100011103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1101100011093 and 1101100011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101100011101) 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, 3979686 + ... + 4247363.

It is an arithmetic number, because the mean of its divisors is an integer number (101974284750).

Almost surely, 2^{1101100011111} is an apocalyptic number.

1101100011111 is a deficient number, since it is larger than the sum of its proper divisors (530488544889).

1101100011111 is an equidigital number, since it uses as much as digits as its factorization.

1101100011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232015 (or 8232009 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 1101100011111 its reverse (1111100011011), we get a palindrome (2212200022122).

The spelling of 1101100011111 in words is "one trillion, one hundred one billion, one hundred million, eleven thousand, one hundred eleven".