100388386243124 has 96 divisors (see below), whose sum is σ = 213059223659520. Its totient is φ = 40402973233152.

The previous prime is 100388386243097. The next prime is 100388386243129. The reversal of 100388386243124 is 421342683883001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100388386243129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415021064 + ... + 415262880.

It is an arithmetic number, because the mean of its divisors is an integer number (2219366913120).

Almost surely, 2^{100388386243124} is an apocalyptic number.

100388386243124 is a gapful number since it is divisible by the number (14) 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 100388386243124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106529611829760).

100388386243124 is an abundant number, since it is smaller than the sum of its proper divisors (112670837416396).

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

100388386243124 is a wasteful number, since it uses less digits than its factorization.

100388386243124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243777 (or 243775 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 53.

The spelling of 100388386243124 in words is "one hundred trillion, three hundred eighty-eight billion, three hundred eighty-six million, two hundred forty-three thousand, one hundred twenty-four".