2002103309 has 2 divisors, whose sum is σ = 2002103310. Its totient is φ = 2002103308.

The previous prime is 2002103303. The next prime is 2002103339. The reversal of 2002103309 is 9033012002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1900698409 + 101404900 = 43597^2 + 10070^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002103309 - 2⁴ = 2002103293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002103303) 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, 1001051654 + 1001051655.

It is an arithmetic number, because the mean of its divisors is an integer number (1001051655).

Almost surely, 2^2002103309 is an apocalyptic number.

It is an amenable number.

2002103309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002103309 is an equidigital number, since it uses as much as digits as its factorization.

2002103309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 2002103309 is about 44744.8690801526. The cubic root of 2002103309 is about 1260.3625623721.

The spelling of 2002103309 in words is "two billion, two million, one hundred three thousand, three hundred nine".