111001011101112 has 32 divisors (see below), whose sum is σ = 302730030276480. Its totient is φ = 33636670030560.

The previous prime is 111001011101111. The next prime is 111001011101119. The reversal of 111001011101112 is 211101110100111.

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 (111001011101111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210229187428 + ... + 210229187955.

It is an arithmetic number, because the mean of its divisors is an integer number (9460313446140).

Almost surely, 2^{111001011101112} is an apocalyptic number.

111001011101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111001011101112 is an abundant number, since it is smaller than the sum of its proper divisors (191729019175368).

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

111001011101112 is a wasteful number, since it uses less digits than its factorization.

111001011101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420458375403 (or 420458375399 counting only the distinct ones).

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

Adding to 111001011101112 its reverse (211101110100111), we get a palindrome (322102121201223).

The spelling of 111001011101112 in words is "one hundred eleven trillion, one billion, eleven million, one hundred one thousand, one hundred twelve".