1011112011111 has 48 divisors (see below), whose sum is σ = 1410328710144. Its totient is φ = 643935600000.

The previous prime is 1011112011089. The next prime is 1011112011121. The reversal of 1011112011111 is 1111102111101.

It is not a de Polignac number, because 1011112011111 - 2⁹ = 1011112010599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011112011121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102117261 + ... + 102127161.

It is an arithmetic number, because the mean of its divisors is an integer number (29381848128).

Almost surely, 2^{1011112011111} is an apocalyptic number.

1011112011111 is a deficient number, since it is larger than the sum of its proper divisors (399216699033).

1011112011111 is an equidigital number, since it uses as much as digits as its factorization.

1011112011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10224 (or 10123 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 1011112011111 its reverse (1111102111101), we get a palindrome (2122214122212).

The spelling of 1011112011111 in words is "one trillion, eleven billion, one hundred twelve million, eleven thousand, one hundred eleven".