1320153313 has 2 divisors, whose sum is σ = 1320153314. Its totient is φ = 1320153312.

The previous prime is 1320153311. The next prime is 1320153319. The reversal of 1320153313 is 3133510231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184942929 + 135210384 = 34423^2 + 11628^2 .

It is an emirp because it is prime and its reverse (3133510231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320153313 - 2¹ = 1320153311 is a prime.

Together with 1320153311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1320153311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660076656 + 660076657.

It is an arithmetic number, because the mean of its divisors is an integer number (660076657).

Almost surely, 2^1320153313 is an apocalyptic number.

It is an amenable number.

1320153313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320153313 is an equidigital number, since it uses as much as digits as its factorization.

1320153313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 1320153313 is about 36333.9140886307. The cubic root of 1320153313 is about 1097.0037781428.

Adding to 1320153313 its reverse (3133510231), we get a palindrome (4453663544).

The spelling of 1320153313 in words is "one billion, three hundred twenty million, one hundred fifty-three thousand, three hundred thirteen".