1011111120112 has 80 divisors (see below), whose sum is σ = 2046151225440. Its totient is φ = 483569049600.

The previous prime is 1011111120109. The next prime is 1011111120133. The reversal of 1011111120112 is 2110211111101.

It is a junction number, because it is equal to n+sod(n) for n = 1011111120092 and 1011111120101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51759787 + ... + 51779317.

It is an arithmetic number, because the mean of its divisors is an integer number (25576890318).

Almost surely, 2^{1011111120112} is an apocalyptic number.

It is an amenable number.

1011111120112 is an abundant number, since it is smaller than the sum of its proper divisors (1035040105328).

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

1011111120112 is a wasteful number, since it uses less digits than its factorization.

1011111120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21122 (or 21116 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1011111120112 its reverse (2110211111101), we get a palindrome (3121322231213).

The spelling of 1011111120112 in words is "one trillion, eleven billion, one hundred eleven million, one hundred twenty thousand, one hundred twelve".