1000321321247 has 2 divisors, whose sum is σ = 1000321321248. Its totient is φ = 1000321321246.

The previous prime is 1000321321201. The next prime is 1000321321253. The reversal of 1000321321247 is 7421231230001.

It is a strong prime.

It is an emirp because it is prime and its reverse (7421231230001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000321321247 - 2⁶ = 1000321321183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000321321297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500160660623 + 500160660624.

It is an arithmetic number, because the mean of its divisors is an integer number (500160660624).

Almost surely, 2^{1000321321247} is an apocalyptic number.

1000321321247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000321321247 is an equidigital number, since it uses as much as digits as its factorization.

1000321321247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 1000321321247 its reverse (7421231230001), we get a palindrome (8421552551248).

The spelling of 1000321321247 in words is "one trillion, three hundred twenty-one million, three hundred twenty-one thousand, two hundred forty-seven".