1111011101112 has 128 divisors (see below), whose sum is σ = 3077138937600. Its totient is φ = 331473024000.

The previous prime is 1111011101089. The next prime is 1111011101113. The reversal of 1111011101112 is 2111011101111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111011101113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4656468 + ... + 4889244.

It is an arithmetic number, because the mean of its divisors is an integer number (24040147950).

Almost surely, 2^{1111011101112} is an apocalyptic number.

1111011101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111011101112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538569468800).

1111011101112 is an abundant number, since it is smaller than the sum of its proper divisors (1966127836488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111011101112 is a wasteful number, since it uses less digits than its factorization.

1111011101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233077 (or 233073 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 1111011101112 its reverse (2111011101111), we get a palindrome (3222022202223).

Subtracting 1111011101112 from its reverse (2111011101111), we obtain a palindrome (999999999999).

The spelling of 1111011101112 in words is "one trillion, one hundred eleven billion, eleven million, one hundred one thousand, one hundred twelve".