13032131321 has 8 divisors (see below), whose sum is σ = 14218486464. Its totient is φ = 11846045520.

The previous prime is 13032131309. The next prime is 13032131339. The reversal of 13032131321 is 12313123031.

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

It is a cyclic number.

It is not a de Polignac number, because 13032131321 - 2²² = 13027937017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13032131293 and 13032131302.

It is not an unprimeable number, because it can be changed into a prime (13032131351) 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, 41495 + ... + 166691.

It is an arithmetic number, because the mean of its divisors is an integer number (1777310808).

Almost surely, 2^13032131321 is an apocalyptic number.

13032131321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13032131321 is a deficient number, since it is larger than the sum of its proper divisors (1186355143).

13032131321 is a wasteful number, since it uses less digits than its factorization.

13032131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134671.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13032131321 its reverse (12313123031), we get a palindrome (25345254352).

The spelling of 13032131321 in words is "thirteen billion, thirty-two million, one hundred thirty-one thousand, three hundred twenty-one".