13221424131 has 8 divisors (see below), whose sum is σ = 17629446144. Its totient is φ = 8813842440.

The previous prime is 13221424129. The next prime is 13221424157. The reversal of 13221424131 is 13142412231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13221424131 - 2¹ = 13221424129 is a prime.

It is a super-2 number, since 2×13221424131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13221424831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32131 + ... + 165756.

It is an arithmetic number, because the mean of its divisors is an integer number (2203680768).

Almost surely, 2^13221424131 is an apocalyptic number.

13221424131 is a deficient number, since it is larger than the sum of its proper divisors (4408022013).

13221424131 is a wasteful number, since it uses less digits than its factorization.

13221424131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220161.

The product of its digits is 1152, while the sum is 24.

Adding to 13221424131 its reverse (13142412231), we get a palindrome (26363836362).

The spelling of 13221424131 in words is "thirteen billion, two hundred twenty-one million, four hundred twenty-four thousand, one hundred thirty-one".