123843120 has 80 divisors (see below), whose sum is σ = 392117760. Its totient is φ = 32319232.

The previous prime is 123843091. The next prime is 123843131. The reversal of 123843120 is 21348321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5791 + ... + 16769.

It is an arithmetic number, because the mean of its divisors is an integer number (4901472).

Almost surely, 2^123843120 is an apocalyptic number.

123843120 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 123843120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196058880).

123843120 is an abundant number, since it is smaller than the sum of its proper divisors (268274640).

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

123843120 is a wasteful number, since it uses less digits than its factorization.

123843120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11042 (or 11036 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 123843120 is about 11128.4823763171. The cubic root of 123843120 is about 498.4527100602.

The spelling of 123843120 in words is "one hundred twenty-three million, eight hundred forty-three thousand, one hundred twenty".