13000404205 has 4 divisors (see below), whose sum is σ = 15600485052. Its totient is φ = 10400323360.

The previous prime is 13000404127. The next prime is 13000404227. The reversal of 13000404205 is 50240400031.

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 7898587876 + 5101816329 = 88874^2 + 71427^2 .

It is not a de Polignac number, because 13000404205 - 2¹⁵ = 13000371437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300040416 + ... + 1300040425.

It is an arithmetic number, because the mean of its divisors is an integer number (3900121263).

Almost surely, 2^13000404205 is an apocalyptic number.

It is an amenable number.

13000404205 is a deficient number, since it is larger than the sum of its proper divisors (2600080847).

13000404205 is an equidigital number, since it uses as much as digits as its factorization.

13000404205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600080846.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 13000404205 its reverse (50240400031), we get a palindrome (63240804236).

The spelling of 13000404205 in words is "thirteen billion, four hundred four thousand, two hundred five".