104251521163 has 4 divisors (see below), whose sum is σ = 104267397960. Its totient is φ = 104235644368.

The previous prime is 104251521139. The next prime is 104251521167. The reversal of 104251521163 is 361125152401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361125152401 = 13 ⋅27778857877.

It is a cyclic number.

It is not a de Polignac number, because 104251521163 - 2²⁵ = 104217966731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104251521167) 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, 7928545 + ... + 7941682.

It is an arithmetic number, because the mean of its divisors is an integer number (26066849490).

Almost surely, 2^104251521163 is an apocalyptic number.

104251521163 is a deficient number, since it is larger than the sum of its proper divisors (15876797).

104251521163 is an equidigital number, since it uses as much as digits as its factorization.

104251521163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15876796.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 104251521163 its reverse (361125152401), we get a palindrome (465376673564).

The spelling of 104251521163 in words is "one hundred four billion, two hundred fifty-one million, five hundred twenty-one thousand, one hundred sixty-three".