1111100100011 has 4 divisors (see below), whose sum is σ = 1212109200024. Its totient is φ = 1010091000000.

The previous prime is 1111100099971. The next prime is 1111100100013. The reversal of 1111100100011 is 1100010011111.

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 1111100100011 - 2³⁴ = 1093920230827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111100100013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50504549990 + ... + 50504550011.

It is an arithmetic number, because the mean of its divisors is an integer number (303027300006).

Almost surely, 2^{1111100100011} is an apocalyptic number.

1111100100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1111100100011 is a deficient number, since it is larger than the sum of its proper divisors (101009100013).

1111100100011 is a wasteful number, since it uses less digits than its factorization.

1111100100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101009100012.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1111100100011 its reverse (1100010011111), we get a palindrome (2211110111122).

The spelling of 1111100100011 in words is "one trillion, one hundred eleven billion, one hundred million, one hundred thousand, eleven".