104403240321 has 4 divisors (see below), whose sum is σ = 139204320432. Its totient is φ = 69602160212.

The previous prime is 104403240313. The next prime is 104403240323. The reversal of 104403240321 is 123042304401.

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: 123042304401 = 3 ⋅41014101467.

It is a cyclic number.

It is not a de Polignac number, because 104403240321 - 2³ = 104403240313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104403240291 and 104403240300.

It is not an unprimeable number, because it can be changed into a prime (104403240323) 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, 17400540051 + ... + 17400540056.

It is an arithmetic number, because the mean of its divisors is an integer number (34801080108).

Almost surely, 2^104403240321 is an apocalyptic number.

It is an amenable number.

104403240321 is a deficient number, since it is larger than the sum of its proper divisors (34801080111).

104403240321 is an equidigital number, since it uses as much as digits as its factorization.

104403240321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34801080110.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 104403240321 its reverse (123042304401), we get a palindrome (227445544722).

The spelling of 104403240321 in words is "one hundred four billion, four hundred three million, two hundred forty thousand, three hundred twenty-one".