12020321039 has 2 divisors, whose sum is σ = 12020321040. Its totient is φ = 12020321038.

The previous prime is 12020321009. The next prime is 12020321119. The reversal of 12020321039 is 93012302021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12020321039 - 2⁸ = 12020320783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020321009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010160519 + 6010160520.

It is an arithmetic number, because the mean of its divisors is an integer number (6010160520).

Almost surely, 2^12020321039 is an apocalyptic number.

12020321039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020321039 is an equidigital number, since it uses as much as digits as its factorization.

12020321039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 12020321039 in words is "twelve billion, twenty million, three hundred twenty-one thousand, thirty-nine".