13104013 has 4 divisors (see below), whose sum is σ = 14112028. Its totient is φ = 12096000.

The previous prime is 13103999. The next prime is 13104017. The reversal of 13104013 is 31040131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31040131 = 571 ⋅54361.

It can be written as a sum of positive squares in 2 ways, for example, as 7823209 + 5280804 = 2797^2 + 2298^2 .

It is a cyclic number.

It is not a de Polignac number, because 13104013 - 2²¹ = 11006861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1008001 = 13104013 / (1 + 3 + 1 + 0 + 4 + 0 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13103984 and 13104002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13104017) 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, 503988 + ... + 504013.

It is an arithmetic number, because the mean of its divisors is an integer number (3528007).

Almost surely, 2^13104013 is an apocalyptic number.

13104013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13104013 is a deficient number, since it is larger than the sum of its proper divisors (1008015).

13104013 is a wasteful number, since it uses less digits than its factorization.

13104013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008014.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13104013 is about 3619.9465465667. The cubic root of 13104013 is about 235.7589046498.

13104013 divided by its sum of digits (13) gives a palindrome (1008001).

Adding to 13104013 its reverse (31040131), we get a palindrome (44144144).

The spelling of 13104013 in words is "thirteen million, one hundred four thousand, thirteen".