13531202441 has 4 divisors (see below), whose sum is σ = 13549815552. Its totient is φ = 13512589332.

The previous prime is 13531202383. The next prime is 13531202449. The reversal of 13531202441 is 14420213531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14420213531 = 65981 ⋅218551.

It is a cyclic number.

It is not a de Polignac number, because 13531202441 - 2¹⁰ = 13531201417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13531202441.

It is not an unprimeable number, because it can be changed into a prime (13531202449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9305465 + ... + 9306918.

It is an arithmetic number, because the mean of its divisors is an integer number (3387453888).

Almost surely, 2^13531202441 is an apocalyptic number.

It is an amenable number.

13531202441 is a deficient number, since it is larger than the sum of its proper divisors (18613111).

13531202441 is an equidigital number, since it uses as much as digits as its factorization.

13531202441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18613110.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 13531202441 its reverse (14420213531), we get a palindrome (27951415972).

The spelling of 13531202441 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, four hundred forty-one".