104102121 has 16 divisors (see below), whose sum is σ = 148294400. Its totient is φ = 64765008.

The previous prime is 104102113. The next prime is 104102153. The reversal of 104102121 is 121201401.

It is a happy number.

It is not a de Polignac number, because 104102121 - 2³ = 104102113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104102097 and 104102106.

It is not an unprimeable number, because it can be changed into a prime (104102111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9811 + ... + 17448.

It is an arithmetic number, because the mean of its divisors is an integer number (9268400).

Almost surely, 2^104102121 is an apocalyptic number.

It is an amenable number.

104102121 is a deficient number, since it is larger than the sum of its proper divisors (44192279).

104102121 is a wasteful number, since it uses less digits than its factorization.

104102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27348.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 104102121 is about 10203.0446926395. The cubic root of 104102121 is about 470.4208106841.

Adding to 104102121 its reverse (121201401), we get a palindrome (225303522).

The spelling of 104102121 in words is "one hundred four million, one hundred two thousand, one hundred twenty-one".