104105020543 has 4 divisors (see below), whose sum is σ = 108631325808. Its totient is φ = 99578715280.

The previous prime is 104105020531. The next prime is 104105020549. The reversal of 104105020543 is 345020501401.

It is a happy number.

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

It is not a de Polignac number, because 104105020543 - 2⁹ = 104105020031 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 (104105020549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263152598 + ... + 2263152643.

It is an arithmetic number, because the mean of its divisors is an integer number (27157831452).

Almost surely, 2^104105020543 is an apocalyptic number.

104105020543 is a deficient number, since it is larger than the sum of its proper divisors (4526305265).

104105020543 is an equidigital number, since it uses as much as digits as its factorization.

104105020543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526305264.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 104105020543 its reverse (345020501401), we get a palindrome (449125521944).

The spelling of 104105020543 in words is "one hundred four billion, one hundred five million, twenty thousand, five hundred forty-three".