124440134121 has 6 divisors (see below), whose sum is σ = 179746860410. Its totient is φ = 82960089408.

The previous prime is 124440134111. The next prime is 124440134129. The reversal of 124440134121 is 121431044421.

124440134121 is a `hidden beast` number, since 1 + 244 + 4 + 0 + 1 + 3 + 412 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 124087107600 + 353026521 = 352260^2 + 18789^2 .

It is a de Polignac number, because none of the positive numbers 2^k-124440134121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124440134129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6913340776 + ... + 6913340793.

Almost surely, 2^124440134121 is an apocalyptic number.

It is an amenable number.

124440134121 is a deficient number, since it is larger than the sum of its proper divisors (55306726289).

124440134121 is a wasteful number, since it uses less digits than its factorization.

124440134121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13826681575 (or 13826681572 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 124440134121 its reverse (121431044421), we get a palindrome (245871178542).

The spelling of 124440134121 in words is "one hundred twenty-four billion, four hundred forty million, one hundred thirty-four thousand, one hundred twenty-one".