13531202131 has 16 divisors (see below), whose sum is σ = 14045788800. Its totient is φ = 13028939968.

The previous prime is 13531202129. The next prime is 13531202141. The reversal of 13531202131 is 13120213531.

It is a cyclic number.

It is not a de Polignac number, because 13531202131 - 2¹ = 13531202129 is a prime.

It is a super-2 number, since 2×13531202131² (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 (13531202141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549816 + ... + 573898.

It is an arithmetic number, because the mean of its divisors is an integer number (877861800).

Almost surely, 2^13531202131 is an apocalyptic number.

13531202131 is a deficient number, since it is larger than the sum of its proper divisors (514586669).

13531202131 is a wasteful number, since it uses less digits than its factorization.

13531202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24338.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 13531202131 its reverse (13120213531), we get a palindrome (26651415662).

The spelling of 13531202131 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, one hundred thirty-one".