124438120056 has 24 divisors (see below), whose sum is σ = 337019908680. Its totient is φ = 41479373328.

The previous prime is 124438120039. The next prime is 124438120063. The reversal of 124438120056 is 650021834421.

It is a happy number.

124438120056 is a `hidden beast` number, since 1 + 2 + 443 + 8 + 1 + 200 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 124438120056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 864153540 + ... + 864153683.

It is an arithmetic number, because the mean of its divisors is an integer number (14042496195).

Almost surely, 2^124438120056 is an apocalyptic number.

It is an amenable number.

124438120056 is an abundant number, since it is smaller than the sum of its proper divisors (212581788624).

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

124438120056 is a wasteful number, since it uses less digits than its factorization.

124438120056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728307235 (or 1728307228 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 124438120056 its reverse (650021834421), we get a palindrome (774459954477).

The spelling of 124438120056 in words is "one hundred twenty-four billion, four hundred thirty-eight million, one hundred twenty thousand, fifty-six".