1321113341 has 2 divisors, whose sum is σ = 1321113342. Its totient is φ = 1321113340.

The previous prime is 1321113319. The next prime is 1321113361. The reversal of 1321113341 is 1433111231.

It is an a-pointer prime, because the next prime (1321113361) can be obtained adding 1321113341 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1233765625 + 87347716 = 35125^2 + 9346^2 .

It is an emirp because it is prime and its reverse (1433111231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321113341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321113361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660556670 + 660556671.

It is an arithmetic number, because the mean of its divisors is an integer number (660556671).

Almost surely, 2^1321113341 is an apocalyptic number.

It is an amenable number.

1321113341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321113341 is an equidigital number, since it uses as much as digits as its factorization.

1321113341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 1321113341 is about 36347.1228710059. The cubic root of 1321113341 is about 1097.2696308908.

Adding to 1321113341 its reverse (1433111231), we get a palindrome (2754224572).

The spelling of 1321113341 in words is "one billion, three hundred twenty-one million, one hundred thirteen thousand, three hundred forty-one".