3123202609 has 2 divisors, whose sum is σ = 3123202610. Its totient is φ = 3123202608.

The previous prime is 3123202567. The next prime is 3123202613. The reversal of 3123202609 is 9062023213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1603762209 + 1519440400 = 40047^2 + 38980^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123202609 - 2²¹ = 3121105457 is a prime.

It is not a weakly prime, because it can be changed into another prime (3123202619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561601304 + 1561601305.

It is an arithmetic number, because the mean of its divisors is an integer number (1561601305).

Almost surely, 2^3123202609 is an apocalyptic number.

It is an amenable number.

3123202609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123202609 is an equidigital number, since it uses as much as digits as its factorization.

3123202609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3123202609 is about 55885.6207713576. The cubic root of 3123202609 is about 1461.7285165143.

The spelling of 3123202609 in words is "three billion, one hundred twenty-three million, two hundred two thousand, six hundred nine".