100420100 has 36 divisors (see below), whose sum is σ = 237724368. Its totient is φ = 36516000.

The previous prime is 100420097. The next prime is 100420141. The reversal of 100420100 is 1024001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44546 + ... + 46745.

Almost surely, 2^100420100 is an apocalyptic number.

100420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100420100 is an abundant number, since it is smaller than the sum of its proper divisors (137304268).

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

100420100 is a wasteful number, since it uses less digits than its factorization.

100420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91316 (or 91309 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 100420100 is about 10020.9829857155. The cubic root of 100420100 is about 464.8079524513.

Adding to 100420100 its reverse (1024001), we get a palindrome (101444101).

The spelling of 100420100 in words is "one hundred million, four hundred twenty thousand, one hundred".