1002230309 has 2 divisors, whose sum is σ = 1002230310. Its totient is φ = 1002230308.

The previous prime is 1002230269. The next prime is 1002230321. The reversal of 1002230309 is 9030322001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520296100 + 481934209 = 22810^2 + 21953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002230309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002230329) 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, 501115154 + 501115155.

It is an arithmetic number, because the mean of its divisors is an integer number (501115155).

Almost surely, 2^1002230309 is an apocalyptic number.

It is an amenable number.

1002230309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002230309 is an equidigital number, since it uses as much as digits as its factorization.

1002230309 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 1002230309 is about 31658.0212426488. The cubic root of 1002230309 is about 1000.7428843196.

The spelling of 1002230309 in words is "one billion, two million, two hundred thirty thousand, three hundred nine".