104143332421 has 4 divisors (see below), whose sum is σ = 104249277792. Its totient is φ = 104037387052.

The previous prime is 104143332331. The next prime is 104143332451. The reversal of 104143332421 is 124233341401.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 104143332421 - 2¹¹ = 104143330373 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 104143332421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104143332451) 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, 52971211 + ... + 52973176.

It is an arithmetic number, because the mean of its divisors is an integer number (26062319448).

Almost surely, 2^104143332421 is an apocalyptic number.

It is an amenable number.

104143332421 is a deficient number, since it is larger than the sum of its proper divisors (105945371).

104143332421 is an equidigital number, since it uses as much as digits as its factorization.

104143332421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105945370.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 104143332421 its reverse (124233341401), we get a palindrome (228376673822).

The spelling of 104143332421 in words is "one hundred four billion, one hundred forty-three million, three hundred thirty-two thousand, four hundred twenty-one".