1306066505323 has 2 divisors, whose sum is σ = 1306066505324. Its totient is φ = 1306066505322.

The previous prime is 1306066505287. The next prime is 1306066505399. The reversal of 1306066505323 is 3235056606031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1306066505323 - 2¹⁷ = 1306066374251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1306066505123) 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, 653033252661 + 653033252662.

It is an arithmetic number, because the mean of its divisors is an integer number (653033252662).

Almost surely, 2^{1306066505323} is an apocalyptic number.

1306066505323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306066505323 is an equidigital number, since it uses as much as digits as its factorization.

1306066505323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 1306066505323 in words is "one trillion, three hundred six billion, sixty-six million, five hundred five thousand, three hundred twenty-three".