123059712 has 80 divisors (see below), whose sum is σ = 331206480. Its totient is φ = 40599552.

The previous prime is 123059687. The next prime is 123059723. The reversal of 123059712 is 217950321.

It is a self number, because there is not a number n which added to its sum of digits gives 123059712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173214 + ... + 173922.

It is an arithmetic number, because the mean of its divisors is an integer number (4140081).

Almost surely, 2^123059712 is an apocalyptic number.

123059712 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 123059712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165603240).

123059712 is an abundant number, since it is smaller than the sum of its proper divisors (208146768).

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

123059712 is an equidigital number, since it uses as much as digits as its factorization.

123059712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 123059712 is about 11093.2282046301. The cubic root of 123059712 is about 497.3994470315.

The spelling of 123059712 in words is "one hundred twenty-three million, fifty-nine thousand, seven hundred twelve".