13131040204213 has 4 divisors (see below), whose sum is σ = 13132011951628. Its totient is φ = 13130068456800.

The previous prime is 13131040204181. The next prime is 13131040204291. The reversal of 13131040204213 is 31240204013131.

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 2908805292484 + 10222234911729 = 1705522^2 + 3197223^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131040204213 - 2⁵ = 13131040204181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131040204313) 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, 485853438 + ... + 485880463.

It is an arithmetic number, because the mean of its divisors is an integer number (3283002987907).

Almost surely, 2^{13131040204213} is an apocalyptic number.

It is an amenable number.

13131040204213 is a deficient number, since it is larger than the sum of its proper divisors (971747415).

13131040204213 is an equidigital number, since it uses as much as digits as its factorization.

13131040204213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971747414.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13131040204213 its reverse (31240204013131), we get a palindrome (44371244217344).

The spelling of 13131040204213 in words is "thirteen trillion, one hundred thirty-one billion, forty million, two hundred four thousand, two hundred thirteen".