100421124 has 24 divisors (see below), whose sum is σ = 234507168. Its totient is φ = 33446400.

The previous prime is 100421077. The next prime is 100421143. The reversal of 100421124 is 421124001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16599 + ... + 21825.

It is an arithmetic number, because the mean of its divisors is an integer number (9771132).

Almost surely, 2^100421124 is an apocalyptic number.

It is an amenable number.

100421124 is an abundant number, since it is smaller than the sum of its proper divisors (134086044).

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

100421124 is a wasteful number, since it uses less digits than its factorization.

100421124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 100421124 is about 10021.0340783773. The cubic root of 100421124 is about 464.8095323532.

Adding to 100421124 its reverse (421124001), we get a palindrome (521545125).

The spelling of 100421124 in words is "one hundred million, four hundred twenty-one thousand, one hundred twenty-four".