21010120013339 has 2 divisors, whose sum is σ = 21010120013340. Its totient is φ = 21010120013338.

The previous prime is 21010120013329. The next prime is 21010120013341. The reversal of 21010120013339 is 93331002101012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010120013339 - 2⁸ = 21010120013083 is a prime.

Together with 21010120013341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21010120013329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505060006669 + 10505060006670.

It is an arithmetic number, because the mean of its divisors is an integer number (10505060006670).

Almost surely, 2^{21010120013339} is an apocalyptic number.

21010120013339 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010120013339 is an equidigital number, since it uses as much as digits as its factorization.

21010120013339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 21010120013339 in words is "twenty-one trillion, ten billion, one hundred twenty million, thirteen thousand, three hundred thirty-nine".