1000111111112 has 16 divisors (see below), whose sum is σ = 1885568603100. Its totient is φ = 497292816960.

The previous prime is 1000111111067. The next prime is 1000111111141. The reversal of 1000111111112 is 2111111110001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 861135744676 + 138975366436 = 927974^2 + 372794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000111111093 and 1000111111102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345340787 + ... + 345343682.

Almost surely, 2^{1000111111112} is an apocalyptic number.

It is an amenable number.

1000111111112 is a deficient number, since it is larger than the sum of its proper divisors (885457491988).

1000111111112 is a wasteful number, since it uses less digits than its factorization.

1000111111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690684656 (or 690684652 counting only the distinct ones).

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

Adding to 1000111111112 its reverse (2111111110001), we get a palindrome (3111222221113).

The spelling of 1000111111112 in words is "one trillion, one hundred eleven million, one hundred eleven thousand, one hundred twelve".