1011011111012 has 24 divisors (see below), whose sum is σ = 2022049163904. Its totient is φ = 433284702912.

The previous prime is 1011011111009. The next prime is 1011011111087. The reversal of 1011011111012 is 2101111101101.

It is a happy number.

1011011111012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1011011110984 and 1011011111002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411288 + ... + 2799344.

It is an arithmetic number, because the mean of its divisors is an integer number (84252048496).

Almost surely, 2^{1011011111012} is an apocalyptic number.

It is an amenable number.

1011011111012 is an abundant number, since it is smaller than the sum of its proper divisors (1011038052892).

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

1011011111012 is a wasteful number, since it uses less digits than its factorization.

1011011111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481115 (or 481113 counting only the distinct ones).

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

Adding to 1011011111012 its reverse (2101111101101), we get a palindrome (3112122212113).

The spelling of 1011011111012 in words is "one trillion, eleven billion, eleven million, one hundred eleven thousand, twelve".