104331138221 has 4 divisors (see below), whose sum is σ = 105800590944. Its totient is φ = 102861685500.

The previous prime is 104331138211. The next prime is 104331138227. The reversal of 104331138221 is 122831133401.

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: 122831133401 = 7219 ⋅17014979.

It is a cyclic number.

It is not a de Polignac number, because 104331138221 - 2⁶ = 104331138157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104331138227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734726255 + ... + 734726396.

It is an arithmetic number, because the mean of its divisors is an integer number (26450147736).

Almost surely, 2^104331138221 is an apocalyptic number.

It is an amenable number.

104331138221 is a deficient number, since it is larger than the sum of its proper divisors (1469452723).

104331138221 is an equidigital number, since it uses as much as digits as its factorization.

104331138221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469452722.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 104331138221 in words is "one hundred four billion, three hundred thirty-one million, one hundred thirty-eight thousand, two hundred twenty-one".