100831412 has 12 divisors (see below), whose sum is σ = 192496416. Its totient is φ = 45832440.

The previous prime is 100831399. The next prime is 100831417. The reversal of 100831412 is 214138001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100831417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145768 + ... + 1145855.

It is an arithmetic number, because the mean of its divisors is an integer number (16041368).

Almost surely, 2^100831412 is an apocalyptic number.

It is an amenable number.

100831412 is a deficient number, since it is larger than the sum of its proper divisors (91665004).

100831412 is a wasteful number, since it uses less digits than its factorization.

100831412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291638 (or 2291636 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 100831412 is about 10041.4845515989. The cubic root of 100831412 is about 465.4416923118.

Adding to 100831412 its reverse (214138001), we get a palindrome (314969413).

The spelling of 100831412 in words is "one hundred million, eight hundred thirty-one thousand, four hundred twelve".