1321302133 has 2 divisors, whose sum is σ = 1321302134. Its totient is φ = 1321302132.

The previous prime is 1321302127. The next prime is 1321302167. The reversal of 1321302133 is 3312031231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 857201284 + 464100849 = 29278^2 + 21543^2 .

It is an emirp because it is prime and its reverse (3312031231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321302133 - 2²⁵ = 1287747701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321302133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321302833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660651066 + 660651067.

It is an arithmetic number, because the mean of its divisors is an integer number (660651067).

Almost surely, 2^1321302133 is an apocalyptic number.

It is an amenable number.

1321302133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321302133 is an equidigital number, since it uses as much as digits as its factorization.

1321302133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1321302133 is about 36349.7198476137. The cubic root of 1321302133 is about 1097.3218963689.

Adding to 1321302133 its reverse (3312031231), we get a palindrome (4633333364).

The spelling of 1321302133 in words is "one billion, three hundred twenty-one million, three hundred two thousand, one hundred thirty-three".