112131011111 has 4 divisors (see below), whose sum is σ = 128149726992. Its totient is φ = 96112295232.

The previous prime is 112131011107. The next prime is 112131011137. The reversal of 112131011111 is 111110131211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112131011111 - 2² = 112131011107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112131011101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8009357930 + ... + 8009357943.

It is an arithmetic number, because the mean of its divisors is an integer number (32037431748).

Almost surely, 2^112131011111 is an apocalyptic number.

112131011111 is a deficient number, since it is larger than the sum of its proper divisors (16018715881).

112131011111 is an equidigital number, since it uses as much as digits as its factorization.

112131011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16018715880.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 112131011111 its reverse (111110131211), we get a palindrome (223241142322).

The spelling of 112131011111 in words is "one hundred twelve billion, one hundred thirty-one million, eleven thousand, one hundred eleven".