1011112101111 has 12 divisors (see below), whose sum is σ = 1568255503992. Its totient is φ = 577778343408.

The previous prime is 1011112101107. The next prime is 1011112101127. The reversal of 1011112101111 is 1111012111101.

It is not a de Polignac number, because 1011112101111 - 2² = 1011112101107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011112106111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3439156660 + ... + 3439156953.

It is an arithmetic number, because the mean of its divisors is an integer number (130687958666).

Almost surely, 2^{1011112101111} is an apocalyptic number.

1011112101111 is a deficient number, since it is larger than the sum of its proper divisors (557143402881).

1011112101111 is an equidigital number, since it uses as much as digits as its factorization.

1011112101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878313630 (or 6878313623 counting only the distinct ones).

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

Adding to 1011112101111 its reverse (1111012111101), we get a palindrome (2122124212212).

The spelling of 1011112101111 in words is "one trillion, eleven billion, one hundred twelve million, one hundred one thousand, one hundred eleven".