2813198321 has 2 divisors, whose sum is σ = 2813198322. Its totient is φ = 2813198320.

The previous prime is 2813198303. The next prime is 2813198341. The reversal of 2813198321 is 1238913182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2556718096 + 256480225 = 50564^2 + 16015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2813198321 is a prime.

It is not a weakly prime, because it can be changed into another prime (2813198341) 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, 1406599160 + 1406599161.

It is an arithmetic number, because the mean of its divisors is an integer number (1406599161).

Almost surely, 2^2813198321 is an apocalyptic number.

It is an amenable number.

2813198321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2813198321 is an equidigital number, since it uses as much as digits as its factorization.

2813198321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 2813198321 is about 53039.5920138909. The cubic root of 2813198321 is about 1411.6708594709.

The spelling of 2813198321 in words is "two billion, eight hundred thirteen million, one hundred ninety-eight thousand, three hundred twenty-one".