13131031031320 has 16 divisors (see below), whose sum is σ = 29544819820560. Its totient is φ = 5252412412512.

The previous prime is 13131031031267. The next prime is 13131031031389. The reversal of 13131031031320 is 2313013013131.

13131031031320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13131031031291 and 13131031031300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164137887852 + ... + 164137887931.

It is an arithmetic number, because the mean of its divisors is an integer number (1846551238785).

Almost surely, 2^{13131031031320} is an apocalyptic number.

13131031031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131031031320 is an abundant number, since it is smaller than the sum of its proper divisors (16413788789240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13131031031320 is a wasteful number, since it uses less digits than its factorization.

13131031031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328275775794 (or 328275775790 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 13131031031320 its reverse (2313013013131), we get a palindrome (15444044044451).

The spelling of 13131031031320 in words is "thirteen trillion, one hundred thirty-one billion, thirty-one million, thirty-one thousand, three hundred twenty".