124121140140 has 48 divisors (see below), whose sum is σ = 347766451200. Its totient is φ = 33077327040.

The previous prime is 124121140127. The next prime is 124121140141. The reversal of 124121140140 is 41041121421.

It is not an unprimeable number, because it can be changed into a prime (124121140141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 583740 + ... + 767459.

It is an arithmetic number, because the mean of its divisors is an integer number (7245134400).

Almost surely, 2^124121140140 is an apocalyptic number.

124121140140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124121140140 is an abundant number, since it is smaller than the sum of its proper divisors (223645311060).

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

124121140140 is a wasteful number, since it uses less digits than its factorization.

124121140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352742 (or 1352740 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 124121140140 its reverse (41041121421), we get a palindrome (165162261561).

The spelling of 124121140140 in words is "one hundred twenty-four billion, one hundred twenty-one million, one hundred forty thousand, one hundred forty".