104420343421 has 4 divisors (see below), whose sum is σ = 105742120000. Its totient is φ = 103098566844.

The previous prime is 104420343371. The next prime is 104420343497. The reversal of 104420343421 is 124343024401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124343024401 = 17 ⋅7314295553.

It is a cyclic number.

It is not a de Polignac number, because 104420343421 - 2¹⁷ = 104420212349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104420343421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104420343221) 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, 660888171 + ... + 660888328.

It is an arithmetic number, because the mean of its divisors is an integer number (26435530000).

Almost surely, 2^104420343421 is an apocalyptic number.

It is an amenable number.

104420343421 is a deficient number, since it is larger than the sum of its proper divisors (1321776579).

104420343421 is an equidigital number, since it uses as much as digits as its factorization.

104420343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321776578.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 104420343421 its reverse (124343024401), we get a palindrome (228763367822).

The spelling of 104420343421 in words is "one hundred four billion, four hundred twenty million, three hundred forty-three thousand, four hundred twenty-one".