13021330131 has 6 divisors (see below), whose sum is σ = 18808587980. Its totient is φ = 8680886748.

The previous prime is 13021330111. The next prime is 13021330141. The reversal of 13021330131 is 13103312031.

It is a happy number.

13021330131 is a `hidden beast` number, since 1 + 302 + 1 + 330 + 1 + 31 = 666.

It is not a de Polignac number, because 13021330131 - 2⁹ = 13021329619 is a prime.

It is a super-2 number, since 2×13021330131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021330111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723407221 + ... + 723407238.

Almost surely, 2^13021330131 is an apocalyptic number.

13021330131 is a deficient number, since it is larger than the sum of its proper divisors (5787257849).

13021330131 is a wasteful number, since it uses less digits than its factorization.

13021330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446814465 (or 1446814462 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13021330131 its reverse (13103312031), we get a palindrome (26124642162).

The spelling of 13021330131 in words is "thirteen billion, twenty-one million, three hundred thirty thousand, one hundred thirty-one".