11011111011112 has 16 divisors (see below), whose sum is σ = 20647090215360. Its totient is φ = 5505220287024.

The previous prime is 11011111011079. The next prime is 11011111011137. The reversal of 11011111011112 is 21111011111011.

It is a junction number, because it is equal to n+sod(n) for n = 11011111011092 and 11011111011101.

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, 41762688 + ... + 42025519.

It is an arithmetic number, because the mean of its divisors is an integer number (1290443138460).

Almost surely, 2^{11011111011112} is an apocalyptic number.

It is an amenable number.

11011111011112 is a deficient number, since it is larger than the sum of its proper divisors (9635979204248).

11011111011112 is a wasteful number, since it uses less digits than its factorization.

11011111011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83804640 (or 83804636 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 11011111011112 its reverse (21111011111011), we get a palindrome (32122122122123).

The spelling of 11011111011112 in words is "eleven trillion, eleven billion, one hundred eleven million, eleven thousand, one hundred twelve".