2000021001239 has 2 divisors, whose sum is σ = 2000021001240. Its totient is φ = 2000021001238.

The previous prime is 2000021001211. The next prime is 2000021001311. The reversal of 2000021001239 is 9321001200002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000021001239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2000021001239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000021001439) 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, 1000010500619 + 1000010500620.

It is an arithmetic number, because the mean of its divisors is an integer number (1000010500620).

Almost surely, 2^{2000021001239} is an apocalyptic number.

2000021001239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000021001239 is an equidigital number, since it uses as much as digits as its factorization.

2000021001239 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 spelling of 2000021001239 in words is "two trillion, twenty-one million, one thousand, two hundred thirty-nine".