100420124 has 48 divisors (see below), whose sum is σ = 206841600. Its totient is φ = 41771136.

The previous prime is 100420097. The next prime is 100420141. The reversal of 100420124 is 421024001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 100420099 and 100420108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146687 + ... + 147369.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^100420124 is an apocalyptic number.

100420124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100420124 is an abundant number, since it is smaller than the sum of its proper divisors (106421476).

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

100420124 is a wasteful number, since it uses less digits than its factorization.

100420124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 100420124 is about 10020.9841832028. The cubic root of 100420124 is about 464.8079894803.

Adding to 100420124 its reverse (421024001), we get a palindrome (521444125).

The spelling of 100420124 in words is "one hundred million, four hundred twenty thousand, one hundred twenty-four".