13131033131311 has 4 divisors (see below), whose sum is σ = 13131056505672. Its totient is φ = 13131009756952.

The previous prime is 13131033131297. The next prime is 13131033131327. The reversal of 13131033131311 is 11313133013131.

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

It is a cyclic number.

It is not a de Polignac number, because 13131033131311 - 2⁹ = 13131033130799 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 (13131033131351) 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, 10823236 + ... + 11975161.

It is an arithmetic number, because the mean of its divisors is an integer number (3282764126418).

Almost surely, 2^{13131033131311} is an apocalyptic number.

13131033131311 is a deficient number, since it is larger than the sum of its proper divisors (23374361).

13131033131311 is an equidigital number, since it uses as much as digits as its factorization.

13131033131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23374360.

The product of its (nonzero) digits is 729, while the sum is 25.

Adding to 13131033131311 its reverse (11313133013131), we get a palindrome (24444166144442).

The spelling of 13131033131311 in words is "thirteen trillion, one hundred thirty-one billion, thirty-three million, one hundred thirty-one thousand, three hundred eleven".