13131204031342 has 4 divisors (see below), whose sum is σ = 19696806047016. Its totient is φ = 6565602015670.

The previous prime is 13131204031339. The next prime is 13131204031391. The reversal of 13131204031342 is 24313040213131.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13131204031342.

It is a congruent number.

It is an unprimeable number.

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, 3282801007834 + ... + 3282801007837.

It is an arithmetic number, because the mean of its divisors is an integer number (4924201511754).

Almost surely, 2^{13131204031342} is an apocalyptic number.

13131204031342 is a deficient number, since it is larger than the sum of its proper divisors (6565602015674).

13131204031342 is an equidigital number, since it uses as much as digits as its factorization.

13131204031342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565602015673.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13131204031342 its reverse (24313040213131), we get a palindrome (37444244244473).

The spelling of 13131204031342 in words is "thirteen trillion, one hundred thirty-one billion, two hundred four million, thirty-one thousand, three hundred forty-two".