100331232 has 24 divisors (see below), whose sum is σ = 263369736. Its totient is φ = 33443712.

The previous prime is 100331219. The next prime is 100331237. The reversal of 100331232 is 232133001.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×100331232² = 20132712229275648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100331237) 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, 522463 + ... + 522654.

It is an arithmetic number, because the mean of its divisors is an integer number (10973739).

Almost surely, 2^100331232 is an apocalyptic number.

100331232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100331232 is an abundant number, since it is smaller than the sum of its proper divisors (163038504).

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

100331232 is a wasteful number, since it uses less digits than its factorization.

100331232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045130 (or 1045122 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 100331232 is about 10016.5479083365. The cubic root of 100331232 is about 464.6707994841.

Adding to 100331232 its reverse (232133001), we get a palindrome (332464233).

The spelling of 100331232 in words is "one hundred million, three hundred thirty-one thousand, two hundred thirty-two".