100011111101111 has 4 divisors (see below), whose sum is σ = 114298412686992. Its totient is φ = 85723809515232.

The previous prime is 100011111101101. The next prime is 100011111101117. The reversal of 100011111101111 is 111101111110001.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-100011111101111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100011111101092 and 100011111101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011111101117) 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, 7143650792930 + ... + 7143650792943.

It is an arithmetic number, because the mean of its divisors is an integer number (28574603171748).

Almost surely, 2^{100011111101111} is an apocalyptic number.

100011111101111 is a deficient number, since it is larger than the sum of its proper divisors (14287301585881).

100011111101111 is an equidigital number, since it uses as much as digits as its factorization.

100011111101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287301585880.

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

Adding to 100011111101111 its reverse (111101111110001), we get a palindrome (211112222211112).

The spelling of 100011111101111 in words is "one hundred trillion, eleven billion, one hundred eleven million, one hundred one thousand, one hundred eleven".