1101111101111 has 8 divisors (see below), whose sum is σ = 1259991630240. Its totient is φ = 942625307808.

The previous prime is 1101111101107. The next prime is 1101111101119. The reversal of 1101111101111 is 1111011111011.

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

It is a cyclic number.

It is not a de Polignac number, because 1101111101111 - 2² = 1101111101107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101111101092 and 1101111101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101111101119) 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, 98677976 + ... + 98689133.

It is an arithmetic number, because the mean of its divisors is an integer number (157498953780).

Almost surely, 2^{1101111101111} is an apocalyptic number.

1101111101111 is a deficient number, since it is larger than the sum of its proper divisors (158880529129).

1101111101111 is an equidigital number, since it uses as much as digits as its factorization.

1101111101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197367913.

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

Adding to 1101111101111 its reverse (1111011111011), we get a palindrome (2212122212122).

It can be divided in two parts, 11011111011 and 11, that multiplied together give a palindrome (121122221121).

The spelling of 1101111101111 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred one thousand, one hundred eleven".