9821341273 has 2 divisors, whose sum is σ = 9821341274. Its totient is φ = 9821341272.

The previous prime is 9821341267. The next prime is 9821341339. The reversal of 9821341273 is 3721431289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9527321664 + 294019609 = 97608^2 + 17147^2 .

It is an emirp because it is prime and its reverse (3721431289) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9821341273 - 2⁹ = 9821340761 is a prime.

It is not a weakly prime, because it can be changed into another prime (9821341223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4910670636 + 4910670637.

It is an arithmetic number, because the mean of its divisors is an integer number (4910670637).

Almost surely, 2^9821341273 is an apocalyptic number.

It is an amenable number.

9821341273 is a deficient number, since it is larger than the sum of its proper divisors (1).

9821341273 is an equidigital number, since it uses as much as digits as its factorization.

9821341273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 9821341273 is about 99102.6804531542. The cubic root of 9821341273 is about 2141.5272291063.

The spelling of 9821341273 in words is "nine billion, eight hundred twenty-one million, three hundred forty-one thousand, two hundred seventy-three".