13323421510549 has 2 divisors, whose sum is σ = 13323421510550. Its totient is φ = 13323421510548.

The previous prime is 13323421510517. The next prime is 13323421510573. The reversal of 13323421510549 is 94501512432331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8837878742449 + 4485542768100 = 2972857^2 + 2117910^2 .

It is a cyclic number.

It is not a de Polignac number, because 13323421510549 - 2⁵ = 13323421510517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13323421514549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6661710755274 + 6661710755275.

It is an arithmetic number, because the mean of its divisors is an integer number (6661710755275).

Almost surely, 2^{13323421510549} is an apocalyptic number.

It is an amenable number.

13323421510549 is a deficient number, since it is larger than the sum of its proper divisors (1).

13323421510549 is an equidigital number, since it uses as much as digits as its factorization.

13323421510549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 13323421510549 in words is "thirteen trillion, three hundred twenty-three billion, four hundred twenty-one million, five hundred ten thousand, five hundred forty-nine".