104121133504 has 56 divisors (see below), whose sum is σ = 209276460288. Its totient is φ = 51391092480.

The previous prime is 104121133453. The next prime is 104121133511. The reversal of 104121133504 is 405331121401.

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, 7041639 + ... + 7056409.

It is an arithmetic number, because the mean of its divisors is an integer number (3737079648).

Almost surely, 2^104121133504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104121133504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104638230144).

104121133504 is an abundant number, since it is smaller than the sum of its proper divisors (105155326784).

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

104121133504 is a wasteful number, since it uses less digits than its factorization.

104121133504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16193 (or 16183 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 104121133504 its reverse (405331121401), we get a palindrome (509452254905).

The spelling of 104121133504 in words is "one hundred four billion, one hundred twenty-one million, one hundred thirty-three thousand, five hundred four".