104020313 has 4 divisors (see below), whose sum is σ = 104041188. Its totient is φ = 103999440.

The previous prime is 104020309. The next prime is 104020337. The reversal of 104020313 is 313020401.

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 42680089 + 61340224 = 6533^2 + 7832^2 .

It is a cyclic number.

It is not a de Polignac number, because 104020313 - 2² = 104020309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104020393) 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, 1895 + ... + 14547.

It is an arithmetic number, because the mean of its divisors is an integer number (26010297).

Almost surely, 2^104020313 is an apocalyptic number.

It is an amenable number.

104020313 is a deficient number, since it is larger than the sum of its proper divisors (20875).

104020313 is an equidigital number, since it uses as much as digits as its factorization.

104020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20874.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 104020313 is about 10199.0349053232. The cubic root of 104020313 is about 470.2975526417.

Adding to 104020313 its reverse (313020401), we get a palindrome (417040714).

The spelling of 104020313 in words is "one hundred four million, twenty thousand, three hundred thirteen".