1341313221 has 4 divisors (see below), whose sum is σ = 1788417632. Its totient is φ = 894208812.

The previous prime is 1341313163. The next prime is 1341313247. The reversal of 1341313221 is 1223131431.

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 not a de Polignac number, because 1341313221 - 2¹³ = 1341305029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341313261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223552201 + ... + 223552206.

It is an arithmetic number, because the mean of its divisors is an integer number (447104408).

Almost surely, 2^1341313221 is an apocalyptic number.

It is an amenable number.

1341313221 is a deficient number, since it is larger than the sum of its proper divisors (447104411).

1341313221 is an equidigital number, since it uses as much as digits as its factorization.

1341313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447104410.

The product of its digits is 432, while the sum is 21.

The square root of 1341313221 is about 36623.9432748578. The cubic root of 1341313221 is about 1102.8338010550.

Adding to 1341313221 its reverse (1223131431), we get a palindrome (2564444652).

The spelling of 1341313221 in words is "one billion, three hundred forty-one million, three hundred thirteen thousand, two hundred twenty-one".