111013231020012 has 36 divisors (see below), whose sum is σ = 280747116173160. Its totient is φ = 36987222942912.

The previous prime is 111013231019993. The next prime is 111013231020061. The reversal of 111013231020012 is 210020132310111.

111013231020012 is a `hidden beast` number, since 1 + 1 + 10 + 132 + 310 + 200 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716062962 + ... + 716217977.

It is an arithmetic number, because the mean of its divisors is an integer number (7798531004810).

Almost surely, 2^{111013231020012} is an apocalyptic number.

111013231020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111013231020012 is an abundant number, since it is smaller than the sum of its proper divisors (169733885153148).

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

111013231020012 is a wasteful number, since it uses less digits than its factorization.

111013231020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432283102 (or 1432283097 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111013231020012 its reverse (210020132310111), we get a palindrome (321033363330123).

The spelling of 111013231020012 in words is "one hundred eleven trillion, thirteen billion, two hundred thirty-one million, twenty thousand, twelve".