13131431021032 has 16 divisors (see below), whose sum is σ = 24621476595300. Its totient is φ = 6565703928960.

The previous prime is 13131431020997. The next prime is 13131431021039. The reversal of 13131431021032 is 23012013413131.

It can be written as a sum of positive squares in 2 ways, for example, as 12383403228036 + 748027792996 = 3519006^2 + 864886^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13131431020988 and 13131431021006.

It is not an unprimeable number, because it can be changed into a prime (13131431021039) 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, 5127982 + ... + 7249762.

Almost surely, 2^{13131431021032} is an apocalyptic number.

It is an amenable number.

13131431021032 is a deficient number, since it is larger than the sum of its proper divisors (11490045574268).

13131431021032 is a wasteful number, since it uses less digits than its factorization.

13131431021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895396 (or 2895392 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13131431021032 its reverse (23012013413131), we get a palindrome (36143444434163).

The spelling of 13131431021032 in words is "thirteen trillion, one hundred thirty-one billion, four hundred thirty-one million, twenty-one thousand, thirty-two".