100011111011111 has 4 divisors (see below), whose sum is σ = 100272236627712. Its totient is φ = 99749985394512.

The previous prime is 100011111011099. The next prime is 100011111011153. The reversal of 100011111011111 is 111110111110001.

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 100011111011111 - 2³⁴ = 99993931141927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100011111011092 and 100011111011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011111011171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130562807726 + ... + 130562808491.

It is an arithmetic number, because the mean of its divisors is an integer number (25068059156928).

Almost surely, 2^{100011111011111} is an apocalyptic number.

100011111011111 is a deficient number, since it is larger than the sum of its proper divisors (261125616601).

100011111011111 is an equidigital number, since it uses as much as digits as its factorization.

100011111011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261125616600.

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

Adding to 100011111011111 its reverse (111110111110001), we get a palindrome (211121222121112).

The spelling of 100011111011111 in words is "one hundred trillion, eleven billion, one hundred eleven million, eleven thousand, one hundred eleven".