1111110101111 has 8 divisors (see below), whose sum is σ = 1112611545984. Its totient is φ = 1109609192160.

The previous prime is 1111110101083. The next prime is 1111110101119. The reversal of 1111110101111 is 1111010111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111110101111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111110101092 and 1111110101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111110101119) 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 7 ways as a sum of consecutive naturals, for example, 4105661 + ... + 4367913.

It is an arithmetic number, because the mean of its divisors is an integer number (139076443248).

Almost surely, 2^{1111110101111} is an apocalyptic number.

1111110101111 is a deficient number, since it is larger than the sum of its proper divisors (1501444873).

1111110101111 is an equidigital number, since it uses as much as digits as its factorization.

1111110101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267961.

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

Adding to 1111110101111 its reverse (1111010111111), we get a palindrome (2222120212222).

It can be divided in two parts, 11 and 11110101111, that multiplied together give a palindrome (122211112221).

The spelling of 1111110101111 in words is "one trillion, one hundred eleven billion, one hundred ten million, one hundred one thousand, one hundred eleven".