111000011111011 has 32 divisors (see below), whose sum is σ = 124533752942592. Its totient is φ = 98059680000000.

The previous prime is 111000011111009. The next prime is 111000011111021. The reversal of 111000011111011 is 110111110000111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111000011111011 - 2¹ = 111000011111009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111000011111021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488892726 + ... + 489119716.

It is an arithmetic number, because the mean of its divisors is an integer number (3891679779456).

Almost surely, 2^{111000011111011} is an apocalyptic number.

111000011111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111000011111011 is a deficient number, since it is larger than the sum of its proper divisors (13533741831581).

111000011111011 is a wasteful number, since it uses less digits than its factorization.

111000011111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231315.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 111000011111011 its reverse (110111110000111), we get a palindrome (221111121111122).

It can be divided in two parts, 1110000111 and 11011, that multiplied together give a palindrome (12222211222221).

The spelling of 111000011111011 in words is "one hundred eleven trillion, eleven million, one hundred eleven thousand, eleven".