100112420 has 12 divisors (see below), whose sum is σ = 210236124. Its totient is φ = 40044960.

The previous prime is 100112401. The next prime is 100112431. The reversal of 100112420 is 24211001.

It can be written as a sum of positive squares in 2 ways, for example, as 12802084 + 87310336 = 3578^2 + 9344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502791 + ... + 2502830.

It is an arithmetic number, because the mean of its divisors is an integer number (17519677).

Almost surely, 2^100112420 is an apocalyptic number.

100112420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100112420 is an abundant number, since it is smaller than the sum of its proper divisors (110123704).

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

100112420 is a wasteful number, since it uses less digits than its factorization.

100112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005630 (or 5005628 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 100112420 is about 10005.6194211053. The cubic root of 100112420 is about 464.3327540280.

Adding to 100112420 its reverse (24211001), we get a palindrome (124323421).

The spelling of 100112420 in words is "one hundred million, one hundred twelve thousand, four hundred twenty".