13131120220231 has 8 divisors (see below), whose sum is σ = 14143927496384. Its totient is φ = 12118701673440.

The previous prime is 13131120220201. The next prime is 13131120220237. The reversal of 13131120220231 is 13202202113131.

13131120220231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13131120220231 is a prime.

It is a super-2 number, since 2×13131120220231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131120220237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97112175 + ... + 97247296.

It is an arithmetic number, because the mean of its divisors is an integer number (1767990937048).

Almost surely, 2^{13131120220231} is an apocalyptic number.

13131120220231 is a deficient number, since it is larger than the sum of its proper divisors (1012807276153).

13131120220231 is a wasteful number, since it uses less digits than its factorization.

13131120220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194364681.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13131120220231 its reverse (13202202113131), we get a palindrome (26333322333362).

The spelling of 13131120220231 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twenty million, two hundred twenty thousand, two hundred thirty-one".