112311212012120 has 128 divisors (see below), whose sum is σ = 287725348592640. Its totient is φ = 39055726026240.

The previous prime is 112311212012089. The next prime is 112311212012123. The reversal of 112311212012120 is 21210212113211.

It is a super-2 number, since 2×112311212012120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112311212012092 and 112311212012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112311212012123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42506834 + ... + 45071646.

It is an arithmetic number, because the mean of its divisors is an integer number (2247854285880).

Almost surely, 2^{112311212012120} is an apocalyptic number.

112311212012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112311212012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143862674296320).

112311212012120 is an abundant number, since it is smaller than the sum of its proper divisors (175414136580520).

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

112311212012120 is a wasteful number, since it uses less digits than its factorization.

112311212012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569185 (or 2569181 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 112311212012120 its reverse (21210212113211), we get a palindrome (133521424125331).

The spelling of 112311212012120 in words is "one hundred twelve trillion, three hundred eleven billion, two hundred twelve million, twelve thousand, one hundred twenty".