1111001112 has 96 divisors (see below), whose sum is σ = 3247760880. Its totient is φ = 341072640.

The previous prime is 1111001053. The next prime is 1111001141. The reversal of 1111001112 is 2111001111.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1111001094 and 1111001103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520287 + ... + 522417.

Almost surely, 2^1111001112 is an apocalyptic number.

1111001112 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 1111001112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623880440).

1111001112 is an abundant number, since it is smaller than the sum of its proper divisors (2136759768).

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

1111001112 is a wasteful number, since it uses less digits than its factorization.

1111001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1111001112 is about 33331.6833058278. The cubic root of 1111001112 is about 1035.7099882420.

Adding to 1111001112 its reverse (2111001111), we get a palindrome (3222002223).

Subtracting 1111001112 from its reverse (2111001111), we obtain a palindrome (999999999).

The spelling of 1111001112 in words is "one billion, one hundred eleven million, one thousand, one hundred twelve".