124200120 has 128 divisors (see below), whose sum is σ = 417623040. Its totient is φ = 29283840.

The previous prime is 124200119. The next prime is 124200151. The reversal of 124200120 is 21002421.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 124200096 and 124200105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47569 + ... + 50111.

It is an arithmetic number, because the mean of its divisors is an integer number (3262680).

Almost surely, 2^124200120 is an apocalyptic number.

124200120 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 124200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208811520).

124200120 is an abundant number, since it is smaller than the sum of its proper divisors (293422920).

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

124200120 is a wasteful number, since it uses less digits than its factorization.

124200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 124200120 is about 11144.5107564217. The cubic root of 124200120 is about 498.9312103385.

Adding to 124200120 its reverse (21002421), we get a palindrome (145202541).

The spelling of 124200120 in words is "one hundred twenty-four million, two hundred thousand, one hundred twenty".