21300329941069 has 2 divisors, whose sum is σ = 21300329941070. Its totient is φ = 21300329941068.

The previous prime is 21300329941049. The next prime is 21300329941097. The reversal of 21300329941069 is 96014992300312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20334345647044 + 965984294025 = 4509362^2 + 982845^2 .

It is a cyclic number.

It is not a de Polignac number, because 21300329941069 - 2⁹ = 21300329940557 is a prime.

It is a super-2 number, since 2×21300329941069² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21300329941049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650164970534 + 10650164970535.

It is an arithmetic number, because the mean of its divisors is an integer number (10650164970535).

Almost surely, 2^{21300329941069} is an apocalyptic number.

It is an amenable number.

21300329941069 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300329941069 is an equidigital number, since it uses as much as digits as its factorization.

21300329941069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 21300329941069 in words is "twenty-one trillion, three hundred billion, three hundred twenty-nine million, nine hundred forty-one thousand, sixty-nine".