100331112 has 32 divisors (see below), whose sum is σ = 286660800. Its totient is φ = 28665984.

The previous prime is 100331069. The next prime is 100331113. The reversal of 100331112 is 211133001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100331113) 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 7 ways as a sum of consecutive naturals, for example, 298437 + ... + 298772.

It is an arithmetic number, because the mean of its divisors is an integer number (8958150).

Almost surely, 2^100331112 is an apocalyptic number.

100331112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100331112 is an abundant number, since it is smaller than the sum of its proper divisors (186329688).

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

100331112 is a wasteful number, since it uses less digits than its factorization.

100331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597225 (or 597221 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 100331112 is about 10016.5419182470. The cubic root of 100331112 is about 464.6706142294.

Adding to 100331112 its reverse (211133001), we get a palindrome (311464113).

The spelling of 100331112 in words is "one hundred million, three hundred thirty-one thousand, one hundred twelve".