1111100111011 has 8 divisors (see below), whose sum is σ = 1212119826624. Its totient is φ = 1010082164520.

The previous prime is 1111100110951. The next prime is 1111100111039. The reversal of 1111100111011 is 1101110011111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1111100111011 - 2⁹ = 1111100110499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111100111111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106856 + ... + 1856698.

It is an arithmetic number, because the mean of its divisors is an integer number (151514978328).

Almost surely, 2^{1111100111011} is an apocalyptic number.

1111100111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1111100111011 is a deficient number, since it is larger than the sum of its proper divisors (101019715613).

1111100111011 is a wasteful number, since it uses less digits than its factorization.

1111100111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884561.

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

Adding to 1111100111011 its reverse (1101110011111), we get a palindrome (2212210122122).

The spelling of 1111100111011 in words is "one trillion, one hundred eleven billion, one hundred million, one hundred eleven thousand, eleven".