104200340421 has 4 divisors (see below), whose sum is σ = 138933787232. Its totient is φ = 69466893612.

The previous prime is 104200340407. The next prime is 104200340467. The reversal of 104200340421 is 124043002401.

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 not a de Polignac number, because 104200340421 - 2⁶ = 104200340357 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 (104200340471) 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, 17366723401 + ... + 17366723406.

It is an arithmetic number, because the mean of its divisors is an integer number (34733446808).

Almost surely, 2^104200340421 is an apocalyptic number.

It is an amenable number.

104200340421 is a deficient number, since it is larger than the sum of its proper divisors (34733446811).

104200340421 is an equidigital number, since it uses as much as digits as its factorization.

104200340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34733446810.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 104200340421 its reverse (124043002401), we get a palindrome (228243342822).

The spelling of 104200340421 in words is "one hundred four billion, two hundred million, three hundred forty thousand, four hundred twenty-one".