104313320021 has 4 divisors (see below), whose sum is σ = 104373514092. Its totient is φ = 104253125952.

The previous prime is 104313319993. The next prime is 104313320029. The reversal of 104313320021 is 120023313401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27521151025 + 76792168996 = 165895^2 + 277114^2 .

It is a cyclic number.

It is not a de Polignac number, because 104313320021 - 2¹⁰ = 104313318997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104313319975 and 104313320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104313320029) 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, 30094436 + ... + 30097901.

It is an arithmetic number, because the mean of its divisors is an integer number (26093378523).

Almost surely, 2^104313320021 is an apocalyptic number.

It is an amenable number.

104313320021 is a deficient number, since it is larger than the sum of its proper divisors (60194071).

104313320021 is an equidigital number, since it uses as much as digits as its factorization.

104313320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60194070.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 104313320021 its reverse (120023313401), we get a palindrome (224336633422).

The spelling of 104313320021 in words is "one hundred four billion, three hundred thirteen million, three hundred twenty thousand, twenty-one".