104243342021 has 24 divisors (see below), whose sum is σ = 129162395520. Its totient is φ = 82377262656.

The previous prime is 104243341949. The next prime is 104243342033. The reversal of 104243342021 is 120243342401.

It is not a de Polignac number, because 104243342021 - 2¹⁸ = 104243079877 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 (104243342081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920075 + ... + 1027143.

It is an arithmetic number, because the mean of its divisors is an integer number (5381766480).

Almost surely, 2^104243342021 is an apocalyptic number.

It is an amenable number.

104243342021 is a deficient number, since it is larger than the sum of its proper divisors (24919053499).

104243342021 is a wasteful number, since it uses less digits than its factorization.

104243342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107925 (or 107912 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 104243342021 its reverse (120243342401), we get a palindrome (224486684422).

The spelling of 104243342021 in words is "one hundred four billion, two hundred forty-three million, three hundred forty-two thousand, twenty-one".