21334324444039 has 2 divisors, whose sum is σ = 21334324444040. Its totient is φ = 21334324444038.

The previous prime is 21334324443977. The next prime is 21334324444063. The reversal of 21334324444039 is 93044442343312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21334324444039 - 2⁷ = 21334324443911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21334324444039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21334324441039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10667162222019 + 10667162222020.

It is an arithmetic number, because the mean of its divisors is an integer number (10667162222020).

Almost surely, 2^{21334324444039} is an apocalyptic number.

21334324444039 is a deficient number, since it is larger than the sum of its proper divisors (1).

21334324444039 is an equidigital number, since it uses as much as digits as its factorization.

21334324444039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 46.

The spelling of 21334324444039 in words is "twenty-one trillion, three hundred thirty-four billion, three hundred twenty-four million, four hundred forty-four thousand, thirty-nine".