100112028 has 12 divisors (see below), whose sum is σ = 233594760. Its totient is φ = 33370672.

The previous prime is 100112009. The next prime is 100112029. The reversal of 100112028 is 820211001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×100112028⁴ (a number of 33 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100111998 and 100112016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112029) 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 3 ways as a sum of consecutive naturals, for example, 4171323 + ... + 4171346.

It is an arithmetic number, because the mean of its divisors is an integer number (19466230).

Almost surely, 2^100112028 is an apocalyptic number.

It is an amenable number.

100112028 is an abundant number, since it is smaller than the sum of its proper divisors (133482732).

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

100112028 is a wasteful number, since it uses less digits than its factorization.

100112028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342676 (or 8342674 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 100112028 is about 10005.5998320940. The cubic root of 100112028 is about 464.3321479804.

Adding to 100112028 its reverse (820211001), we get a palindrome (920323029).

The spelling of 100112028 in words is "one hundred million, one hundred twelve thousand, twenty-eight".