13131006662321 has 8 divisors (see below), whose sum is σ = 13176829963584. Its totient is φ = 13085190215920.

The previous prime is 13131006662107. The next prime is 13131006662359. The reversal of 13131006662321 is 12326660013131.

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-13131006662321 is a prime.

It is a super-2 number, since 2×13131006662321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131006667321) 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, 2139206 + ... + 5553216.

It is an arithmetic number, because the mean of its divisors is an integer number (1647103745448).

Almost surely, 2^{13131006662321} is an apocalyptic number.

It is an amenable number.

13131006662321 is a deficient number, since it is larger than the sum of its proper divisors (45823301263).

13131006662321 is a wasteful number, since it uses less digits than its factorization.

13131006662321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427431.

The product of its (nonzero) digits is 23328, while the sum is 35.

Adding to 13131006662321 its reverse (12326660013131), we get a palindrome (25457666675452).

The spelling of 13131006662321 in words is "thirteen trillion, one hundred thirty-one billion, six million, six hundred sixty-two thousand, three hundred twenty-one".