104128312 has 32 divisors (see below), whose sum is σ = 200736000. Its totient is φ = 50613984.

The previous prime is 104128301. The next prime is 104128331. The reversal of 104128312 is 213821401.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60439 + ... + 62137.

It is an arithmetic number, because the mean of its divisors is an integer number (6273000).

Almost surely, 2^104128312 is an apocalyptic number.

It is an amenable number.

104128312 is a deficient number, since it is larger than the sum of its proper divisors (96607688).

104128312 is a wasteful number, since it uses less digits than its factorization.

104128312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 104128312 is about 10204.3281013499. The cubic root of 104128312 is about 470.4602583541.

Adding to 104128312 its reverse (213821401), we get a palindrome (317949713).

The spelling of 104128312 in words is "one hundred four million, one hundred twenty-eight thousand, three hundred twelve".