1002303209 has 2 divisors, whose sum is σ = 1002303210. Its totient is φ = 1002303208.

The previous prime is 1002303199. The next prime is 1002303217. The reversal of 1002303209 is 9023032001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594384400 + 407918809 = 24380^2 + 20197^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002303209 - 2²⁸ = 733867753 is a prime.

It is a super-2 number, since 2×1002303209² = 2009223445543395362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002303259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501151604 + 501151605.

It is an arithmetic number, because the mean of its divisors is an integer number (501151605).

Almost surely, 2^1002303209 is an apocalyptic number.

It is an amenable number.

1002303209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002303209 is an equidigital number, since it uses as much as digits as its factorization.

1002303209 is an evil number, because the sum of its binary digits is even.

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

The square root of 1002303209 is about 31659.1725886827. The cubic root of 1002303209 is about 1000.7671476673.

The spelling of 1002303209 in words is "one billion, two million, three hundred three thousand, two hundred nine".