104552312421 has 4 divisors (see below), whose sum is σ = 139403083232. Its totient is φ = 69701541612.

The previous prime is 104552312419. The next prime is 104552312477. The reversal of 104552312421 is 124213255401.

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: 124213255401 = 3 ⋅41404418467.

It is not a de Polignac number, because 104552312421 - 2¹ = 104552312419 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 (104552312021) 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, 17425385401 + ... + 17425385406.

It is an arithmetic number, because the mean of its divisors is an integer number (34850770808).

Almost surely, 2^104552312421 is an apocalyptic number.

It is an amenable number.

104552312421 is a deficient number, since it is larger than the sum of its proper divisors (34850770811).

104552312421 is an equidigital number, since it uses as much as digits as its factorization.

104552312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34850770810.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 104552312421 its reverse (124213255401), we get a palindrome (228765567822).

The spelling of 104552312421 in words is "one hundred four billion, five hundred fifty-two million, three hundred twelve thousand, four hundred twenty-one".