1111101112111 has 4 divisors (see below), whose sum is σ = 1111162902552. Its totient is φ = 1111039321672.

The previous prime is 1111101112109. The next prime is 1111101112243. The reversal of 1111101112111 is 1112111011111.

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 1111101112111 - 2¹ = 1111101112109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111101112091 and 1111101112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111101142111) 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, 30868240 + ... + 30904213.

It is an arithmetic number, because the mean of its divisors is an integer number (277790725638).

Almost surely, 2^{1111101112111} is an apocalyptic number.

1111101112111 is a deficient number, since it is larger than the sum of its proper divisors (61790441).

1111101112111 is an equidigital number, since it uses as much as digits as its factorization.

1111101112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61790440.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 1111101112111 its reverse (1112111011111), we get a palindrome (2223212123222).

It can be divided in two parts, 111110 and 1112111, that added together give a palindrome (1223221).

The spelling of 1111101112111 in words is "one trillion, one hundred eleven billion, one hundred one million, one hundred twelve thousand, one hundred eleven".