1298866550323 has 2 divisors, whose sum is σ = 1298866550324. Its totient is φ = 1298866550322.

The previous prime is 1298866550281. The next prime is 1298866550339. The reversal of 1298866550323 is 3230556688921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1298866550323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1298866553323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649433275161 + 649433275162.

It is an arithmetic number, because the mean of its divisors is an integer number (649433275162).

Almost surely, 2^{1298866550323} is an apocalyptic number.

1298866550323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298866550323 is an equidigital number, since it uses as much as digits as its factorization.

1298866550323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 1298866550323 in words is "one trillion, two hundred ninety-eight billion, eight hundred sixty-six million, five hundred fifty thousand, three hundred twenty-three".