13131131323232 has 48 divisors (see below), whose sum is σ = 29050981192800. Its totient is φ = 5797021181952.

The previous prime is 13131131323231. The next prime is 13131131323237. The reversal of 13131131323232 is 23232313113131.

It is a junction number, because it is equal to n+sod(n) for n = 13131131323195 and 13131131323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131131323231) 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, 686190857 + ... + 686209992.

It is an arithmetic number, because the mean of its divisors is an integer number (605228774850).

Almost surely, 2^{13131131323232} is an apocalyptic number.

It is an amenable number.

13131131323232 is an abundant number, since it is smaller than the sum of its proper divisors (15919849869568).

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

13131131323232 is a wasteful number, since it uses less digits than its factorization.

13131131323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372400895 (or 1372400887 counting only the distinct ones).

The product of its digits is 5832, while the sum is 29.

Adding to 13131131323232 its reverse (23232313113131), we get a palindrome (36363444436363).

The spelling of 13131131323232 in words is "thirteen trillion, one hundred thirty-one billion, one hundred thirty-one million, three hundred twenty-three thousand, two hundred thirty-two".