104521112503 has 4 divisors (see below), whose sum is σ = 105844164640. Its totient is φ = 103198060368.

The previous prime is 104521112483. The next prime is 104521112513. The reversal of 104521112503 is 305211125401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104521112503 - 2⁵ = 104521112471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104521112513) 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, 661525950 + ... + 661526107.

It is an arithmetic number, because the mean of its divisors is an integer number (26461041160).

Almost surely, 2^104521112503 is an apocalyptic number.

104521112503 is a deficient number, since it is larger than the sum of its proper divisors (1323052137).

104521112503 is an equidigital number, since it uses as much as digits as its factorization.

104521112503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323052136.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 104521112503 its reverse (305211125401), we get a palindrome (409732237904).

The spelling of 104521112503 in words is "one hundred four billion, five hundred twenty-one million, one hundred twelve thousand, five hundred three".