112112131123 has 4 divisors (see below), whose sum is σ = 112355324928. Its totient is φ = 111868937320.

The previous prime is 112112131121. The next prime is 112112131147. The reversal of 112112131123 is 321131211211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321131211211 = 107 ⋅3001226273.

It is a cyclic number.

It is not a de Polignac number, because 112112131123 - 2¹ = 112112131121 is a prime.

It is a super-2 number, since 2×112112131123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112112131123.

It is not an unprimeable number, because it can be changed into a prime (112112131121) 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, 121596211 + ... + 121597132.

It is an arithmetic number, because the mean of its divisors is an integer number (28088831232).

Almost surely, 2^112112131123 is an apocalyptic number.

112112131123 is a deficient number, since it is larger than the sum of its proper divisors (243193805).

112112131123 is an equidigital number, since it uses as much as digits as its factorization.

112112131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243193804.

The product of its digits is 72, while the sum is 19.

Adding to 112112131123 its reverse (321131211211), we get a palindrome (433243342334).

The spelling of 112112131123 in words is "one hundred twelve billion, one hundred twelve million, one hundred thirty-one thousand, one hundred twenty-three".