124120056005 has 16 divisors (see below), whose sum is σ = 172042346304. Its totient is φ = 84959182080.

The previous prime is 124120055981. The next prime is 124120056007. The reversal of 124120056005 is 500650021421.

It is not a de Polignac number, because 124120056005 - 2²⁰ = 124119007429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124120056007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66373427 + ... + 66375296.

It is an arithmetic number, because the mean of its divisors is an integer number (10752646644).

Almost surely, 2^124120056005 is an apocalyptic number.

It is an amenable number.

124120056005 is a deficient number, since it is larger than the sum of its proper divisors (47922290299).

124120056005 is a wasteful number, since it uses less digits than its factorization.

124120056005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132748756.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 124120056005 its reverse (500650021421), we get a palindrome (624770077426).

The spelling of 124120056005 in words is "one hundred twenty-four billion, one hundred twenty million, fifty-six thousand, five".