123866112 has 88 divisors (see below), whose sum is σ = 336068272. Its totient is φ = 40550400.

The previous prime is 123866107. The next prime is 123866117. The reversal of 123866112 is 211668321.

It is an interprime number because it is at equal distance from previous prime (123866107) and next prime (123866117).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 123866112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123866117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187062 + ... + 187722.

Almost surely, 2^123866112 is an apocalyptic number.

123866112 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 123866112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168034136).

123866112 is an abundant number, since it is smaller than the sum of its proper divisors (212202160).

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

123866112 is an equidigital number, since it uses as much as digits as its factorization.

123866112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 727 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 123866112 is about 11129.5153533296. The cubic root of 123866112 is about 498.4835547707.

The spelling of 123866112 in words is "one hundred twenty-three million, eight hundred sixty-six thousand, one hundred twelve".