1320513052289 has 2 divisors, whose sum is σ = 1320513052290. Its totient is φ = 1320513052288.

The previous prime is 1320513052249. The next prime is 1320513052301. The reversal of 1320513052289 is 9822503150231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1189827187264 + 130685865025 = 1090792^2 + 361505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320513052289 - 2¹⁶ = 1320512986753 is a prime.

It is a super-2 number, since 2×1320513052289² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1320513052249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660256526144 + 660256526145.

It is an arithmetic number, because the mean of its divisors is an integer number (660256526145).

Almost surely, 2^{1320513052289} is an apocalyptic number.

It is an amenable number.

1320513052289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320513052289 is an equidigital number, since it uses as much as digits as its factorization.

1320513052289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1320513052289 in words is "one trillion, three hundred twenty billion, five hundred thirteen million, fifty-two thousand, two hundred eighty-nine".