104112421 has 16 divisors (see below), whose sum is σ = 126206208. Its totient is φ = 83952000.

The previous prime is 104112401. The next prime is 104112431. The reversal of 104112421 is 124211401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 104112421 - 2¹⁵ = 104079653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104112395 and 104112404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104112401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4521 + ... + 15121.

It is an arithmetic number, because the mean of its divisors is an integer number (7887888).

Almost surely, 2^104112421 is an apocalyptic number.

It is an amenable number.

104112421 is a deficient number, since it is larger than the sum of its proper divisors (22093787).

104112421 is a wasteful number, since it uses less digits than its factorization.

104112421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10692.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 104112421 is about 10203.5494314479. The cubic root of 104112421 is about 470.4363248559.

Adding to 104112421 its reverse (124211401), we get a palindrome (228323822).

The spelling of 104112421 in words is "one hundred four million, one hundred twelve thousand, four hundred twenty-one".