13531221341 has 16 divisors (see below), whose sum is σ = 15260272128. Its totient is φ = 11886513600.

The previous prime is 13531221293. The next prime is 13531221359. The reversal of 13531221341 is 14312213531.

It is a cyclic number.

It is not a de Polignac number, because 13531221341 - 2²² = 13527027037 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 13531221341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531251341) 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, 201551 + ... + 260163.

It is an arithmetic number, because the mean of its divisors is an integer number (953767008).

Almost surely, 2^13531221341 is an apocalyptic number.

13531221341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13531221341 is a deficient number, since it is larger than the sum of its proper divisors (1729050787).

13531221341 is a wasteful number, since it uses less digits than its factorization.

13531221341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59332.

The product of its digits is 2160, while the sum is 26.

Adding to 13531221341 its reverse (14312213531), we get a palindrome (27843434872).

The spelling of 13531221341 in words is "thirteen billion, five hundred thirty-one million, two hundred twenty-one thousand, three hundred forty-one".