100111111112 has 32 divisors (see below), whose sum is σ = 197642359200. Its totient is φ = 47407939200.

The previous prime is 100111111109. The next prime is 100111111123. The reversal of 100111111112 is 211111111001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100111111093 and 100111111102.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 471812 + ... + 650252.

It is an arithmetic number, because the mean of its divisors is an integer number (6176323725).

Almost surely, 2^100111111112 is an apocalyptic number.

It is an amenable number.

100111111112 is a deficient number, since it is larger than the sum of its proper divisors (97531248088).

100111111112 is a wasteful number, since it uses less digits than its factorization.

100111111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182157 (or 182153 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 100111111112 its reverse (211111111001), we get a palindrome (311222222113).

The spelling of 100111111112 in words is "one hundred billion, one hundred eleven million, one hundred eleven thousand, one hundred twelve".