123041112 has 64 divisors (see below), whose sum is σ = 330739200. Its totient is φ = 38021760.

The previous prime is 123041111. The next prime is 123041141. The reversal of 123041112 is 211140321.

It is a junction number, because it is equal to n+sod(n) for n = 123041091 and 123041100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123041111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18562 + ... + 24302.

It is an arithmetic number, because the mean of its divisors is an integer number (5167800).

Almost surely, 2^123041112 is an apocalyptic number.

123041112 is a gapful number since it is divisible by the number (12) 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 123041112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165369600).

123041112 is an abundant number, since it is smaller than the sum of its proper divisors (207698088).

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

123041112 is a wasteful number, since it uses less digits than its factorization.

123041112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816 (or 5812 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 123041112 is about 11092.3898236584. The cubic root of 123041112 is about 497.3743857673.

Adding to 123041112 its reverse (211140321), we get a palindrome (334181433).

The spelling of 123041112 in words is "one hundred twenty-three million, forty-one thousand, one hundred twelve".