111101121101111 has 4 divisors (see below), whose sum is σ = 112201132201224. Its totient is φ = 110001110001000.

The previous prime is 111101121101077. The next prime is 111101121101119.

111101121101111 is nontrivially palindromic in base 10.

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-111101121101111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101121101119) 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, 550005549905 + ... + 550005550106.

It is an arithmetic number, because the mean of its divisors is an integer number (28050283050306).

Almost surely, 2^{111101121101111} is an apocalyptic number.

111101121101111 is a deficient number, since it is larger than the sum of its proper divisors (1100011100113).

111101121101111 is a wasteful number, since it uses less digits than its factorization.

111101121101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100011100112.

The product of its (nonzero) digits is 2, while the sum is 14.

The spelling of 111101121101111 in words is "one hundred eleven trillion, one hundred one billion, one hundred twenty-one million, one hundred one thousand, one hundred eleven".