100423100 has 36 divisors (see below), whose sum is σ = 219871344. Its totient is φ = 39809280.

The previous prime is 100423093. The next prime is 100423109. The reversal of 100423100 is 1324001.

It is a happy number.

It is a super-2 number, since 2×100423100² = 20169598027220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100423109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6857 + ... + 15743.

Almost surely, 2^100423100 is an apocalyptic number.

100423100 is a gapful number since it is divisible by the number (10) 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 100423100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109935672).

100423100 is an abundant number, since it is smaller than the sum of its proper divisors (119448244).

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

100423100 is a wasteful number, since it uses less digits than its factorization.

100423100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014 (or 9007 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100423100 is about 10021.1326705119. The cubic root of 100423100 is about 464.8125810398.

Adding to 100423100 its reverse (1324001), we get a palindrome (101747101).

Subtracting from 100423100 its reverse (1324001), we obtain a palindrome (99099099).

The spelling of 100423100 in words is "one hundred million, four hundred twenty-three thousand, one hundred".