111442320012 has 24 divisors (see below), whose sum is σ = 260037849456. Its totient is φ = 37146615808.

The previous prime is 111442320001. The next prime is 111442320029. The reversal of 111442320012 is 210023244111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729388 + ... + 868844.

It is an arithmetic number, because the mean of its divisors is an integer number (10834910394).

Almost surely, 2^111442320012 is an apocalyptic number.

111442320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111442320012 is an abundant number, since it is smaller than the sum of its proper divisors (148595529444).

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

111442320012 is a wasteful number, since it uses less digits than its factorization.

111442320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206057 (or 206055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 111442320012 its reverse (210023244111), we get a palindrome (321465564123).

The spelling of 111442320012 in words is "one hundred eleven billion, four hundred forty-two million, three hundred twenty thousand, twelve".