13131120404231 has 2 divisors, whose sum is σ = 13131120404232. Its totient is φ = 13131120404230.

The previous prime is 13131120404191. The next prime is 13131120404243. The reversal of 13131120404231 is 13240402113131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13131120404231 - 2¹⁸ = 13131120142087 is a prime.

It is a super-2 number, since 2×13131120404231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13131120404231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131120484231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565560202115 + 6565560202116.

It is an arithmetic number, because the mean of its divisors is an integer number (6565560202116).

Almost surely, 2^{13131120404231} is an apocalyptic number.

13131120404231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131120404231 is an equidigital number, since it uses as much as digits as its factorization.

13131120404231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 13131120404231 its reverse (13240402113131), we get a palindrome (26371522517362).

The spelling of 13131120404231 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twenty million, four hundred four thousand, two hundred thirty-one".