111123102112012 has 12 divisors (see below), whose sum is σ = 194790078831600. Its totient is φ = 55468793874416.

The previous prime is 111123102112007. The next prime is 111123102112013. The reversal of 111123102112012 is 210211201321111.

It is a super-3 number, since 3×111123102112012³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111123102112013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23189292703 + ... + 23189297494.

It is an arithmetic number, because the mean of its divisors is an integer number (16232506569300).

Almost surely, 2^{111123102112012} is an apocalyptic number.

It is an amenable number.

111123102112012 is a deficient number, since it is larger than the sum of its proper divisors (83666976719588).

111123102112012 is a wasteful number, since it uses less digits than its factorization.

111123102112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46378590800 (or 46378590798 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 111123102112012 its reverse (210211201321111), we get a palindrome (321334303433123).

The spelling of 111123102112012 in words is "one hundred eleven trillion, one hundred twenty-three billion, one hundred two million, one hundred twelve thousand, twelve".