2012120039 has 2 divisors, whose sum is σ = 2012120040. Its totient is φ = 2012120038.

The previous prime is 2012120023. The next prime is 2012120057. The reversal of 2012120039 is 9300212102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012120039 - 2⁴ = 2012120023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012120039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012120009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006060019 + 1006060020.

It is an arithmetic number, because the mean of its divisors is an integer number (1006060020).

Almost surely, 2^2012120039 is an apocalyptic number.

2012120039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012120039 is an equidigital number, since it uses as much as digits as its factorization.

2012120039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2012120039 is about 44856.6610326716. The cubic root of 2012120039 is about 1262.4609748287.

The spelling of 2012120039 in words is "two billion, twelve million, one hundred twenty thousand, thirty-nine".