1111103042112 has 252 divisors, whose sum is σ = 3716681432256. Its totient is φ = 316434746880.

The previous prime is 1111103042099. The next prime is 1111103042123. The reversal of 1111103042112 is 2112403011111.

It is a tau number, because it is divible by the number of its divisors (252).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 8714373 + ... + 8840955.

Almost surely, 2^{1111103042112} is an apocalyptic number.

1111103042112 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 1111103042112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858340716128).

1111103042112 is an abundant number, since it is smaller than the sum of its proper divisors (2605578390144).

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

1111103042112 is a wasteful number, since it uses less digits than its factorization.

1111103042112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126926 (or 126906 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1111103042112 its reverse (2112403011111), we get a palindrome (3223506053223).

The spelling of 1111103042112 in words is "one trillion, one hundred eleven billion, one hundred three million, forty-two thousand, one hundred twelve".