2002973770321 has 2 divisors, whose sum is σ = 2002973770322. Its totient is φ = 2002973770320.

The previous prime is 2002973770309. The next prime is 2002973770327. The reversal of 2002973770321 is 1230773792002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1101945669696 + 901028100625 = 1049736^2 + 949225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002973770321 - 2¹⁵ = 2002973737553 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002973770327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001486885160 + 1001486885161.

It is an arithmetic number, because the mean of its divisors is an integer number (1001486885161).

Almost surely, 2^{2002973770321} is an apocalyptic number.

It is an amenable number.

2002973770321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002973770321 is an equidigital number, since it uses as much as digits as its factorization.

2002973770321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 43.

The spelling of 2002973770321 in words is "two trillion, two billion, nine hundred seventy-three million, seven hundred seventy thousand, three hundred twenty-one".