13043505204 has 54 divisors (see below), whose sum is σ = 35024672774. Its totient is φ = 4092076800.

The previous prime is 13043505203. The next prime is 13043505281. The reversal of 13043505204 is 40250534031.

13043505204 is a `hidden beast` number, since 1 + 304 + 350 + 5 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1711476900 + 11332028304 = 41370^2 + 106452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043505203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 616447 + ... + 637254.

Almost surely, 2^13043505204 is an apocalyptic number.

It is an amenable number.

13043505204 is an abundant number, since it is smaller than the sum of its proper divisors (21981167570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13043505204 is a wasteful number, since it uses less digits than its factorization.

13043505204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253745 (or 1253723 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 13043505204 in words is "thirteen billion, forty-three million, five hundred five thousand, two hundred four".