21339946122367 has 2 divisors, whose sum is σ = 21339946122368. Its totient is φ = 21339946122366.

The previous prime is 21339946122361. The next prime is 21339946122427. The reversal of 21339946122367 is 76322164993312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21339946122367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21339946122361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10669973061183 + 10669973061184.

It is an arithmetic number, because the mean of its divisors is an integer number (10669973061184).

Almost surely, 2^{21339946122367} is an apocalyptic number.

21339946122367 is a deficient number, since it is larger than the sum of its proper divisors (1).

21339946122367 is an equidigital number, since it uses as much as digits as its factorization.

21339946122367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 58.

The spelling of 21339946122367 in words is "twenty-one trillion, three hundred thirty-nine billion, nine hundred forty-six million, one hundred twenty-two thousand, three hundred sixty-seven".