20012002039 has 2 divisors, whose sum is σ = 20012002040. Its totient is φ = 20012002038.

The previous prime is 20012002001. The next prime is 20012002061. The reversal of 20012002039 is 93020021002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012002039 - 2²⁵ = 19978447607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012002069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006001019 + 10006001020.

It is an arithmetic number, because the mean of its divisors is an integer number (10006001020).

Almost surely, 2^20012002039 is an apocalyptic number.

20012002039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012002039 is an equidigital number, since it uses as much as digits as its factorization.

20012002039 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 19.

The spelling of 20012002039 in words is "twenty billion, twelve million, two thousand, thirty-nine".