13220311241 has 4 divisors (see below), whose sum is σ = 13232679300. Its totient is φ = 13207943184.

The previous prime is 13220311213. The next prime is 13220311259. The reversal of 13220311241 is 14211302231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14211302231 = 7 ⋅2030186033.

It can be written as a sum of positive squares in 2 ways, for example, as 1891902016 + 11328409225 = 43496^2 + 106435^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220311241 - 2⁶ = 13220311177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220311201) 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, 6182426 + ... + 6184563.

It is an arithmetic number, because the mean of its divisors is an integer number (3308169825).

Almost surely, 2^13220311241 is an apocalyptic number.

It is an amenable number.

13220311241 is a deficient number, since it is larger than the sum of its proper divisors (12368059).

13220311241 is a wasteful number, since it uses less digits than its factorization.

13220311241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12368058.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13220311241 its reverse (14211302231), we get a palindrome (27431613472).

The spelling of 13220311241 in words is "thirteen billion, two hundred twenty million, three hundred eleven thousand, two hundred forty-one".