1320513241 has 2 divisors, whose sum is σ = 1320513242. Its totient is φ = 1320513240.

The previous prime is 1320513221. The next prime is 1320513263. The reversal of 1320513241 is 1423150231.

It is a happy number.

It is an a-pointer prime, because the next prime (1320513263) can be obtained adding 1320513241 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1289097216 + 31416025 = 35904^2 + 5605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320513241 - 2²⁵ = 1286958809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320513211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660256620 + 660256621.

It is an arithmetic number, because the mean of its divisors is an integer number (660256621).

Almost surely, 2^1320513241 is an apocalyptic number.

It is an amenable number.

1320513241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320513241 is an equidigital number, since it uses as much as digits as its factorization.

1320513241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1320513241 is about 36338.8668095195. The cubic root of 1320513241 is about 1097.1034651751.

Adding to 1320513241 its reverse (1423150231), we get a palindrome (2743663472).

The spelling of 1320513241 in words is "one billion, three hundred twenty million, five hundred thirteen thousand, two hundred forty-one".