13531142241 has 6 divisors (see below), whose sum is σ = 19544983250. Its totient is φ = 9020761488.

The previous prime is 13531142227. The next prime is 13531142243. The reversal of 13531142241 is 14224113531.

It can be written as a sum of positive squares in only one way, i.e., 12966604641 + 564537600 = 113871^2 + 23760^2 .

It is not a de Polignac number, because 13531142241 - 2⁷ = 13531142113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531142243) 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, 751730116 + ... + 751730133.

Almost surely, 2^13531142241 is an apocalyptic number.

It is an amenable number.

13531142241 is a deficient number, since it is larger than the sum of its proper divisors (6013841009).

13531142241 is a wasteful number, since it uses less digits than its factorization.

13531142241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503460255 (or 1503460252 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 13531142241 its reverse (14224113531), we get a palindrome (27755255772).

The spelling of 13531142241 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-two thousand, two hundred forty-one".