13224004441 has 4 divisors (see below), whose sum is σ = 13531539472. Its totient is φ = 12916469412.

The previous prime is 13224004439. The next prime is 13224004447. The reversal of 13224004441 is 14440042231.

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.

It is a cyclic number.

It is not a de Polignac number, because 13224004441 - 2¹ = 13224004439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13224004447) 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, 153767451 + ... + 153767536.

It is an arithmetic number, because the mean of its divisors is an integer number (3382884868).

Almost surely, 2^13224004441 is an apocalyptic number.

It is an amenable number.

13224004441 is a deficient number, since it is larger than the sum of its proper divisors (307535031).

13224004441 is an equidigital number, since it uses as much as digits as its factorization.

13224004441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307535030.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 13224004441 its reverse (14440042231), we get a palindrome (27664046672).

The spelling of 13224004441 in words is "thirteen billion, two hundred twenty-four million, four thousand, four hundred forty-one".