2012302309 has 2 divisors, whose sum is σ = 2012302310. Its totient is φ = 2012302308.

The previous prime is 2012302297. The next prime is 2012302333. The reversal of 2012302309 is 9032032102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024960225 + 987342084 = 32015^2 + 31422^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012302309 - 2⁵ = 2012302277 is a prime.

It is a super-5 number, since 5×2012302309⁵ (a number of 48 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2012302309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012302339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006151154 + 1006151155.

It is an arithmetic number, because the mean of its divisors is an integer number (1006151155).

Almost surely, 2^2012302309 is an apocalyptic number.

It is an amenable number.

2012302309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012302309 is an equidigital number, since it uses as much as digits as its factorization.

2012302309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2012302309 is about 44858.6926804605. The cubic root of 2012302309 is about 1262.4990941274.

The spelling of 2012302309 in words is "two billion, twelve million, three hundred two thousand, three hundred nine".