13220134445513 has 2 divisors, whose sum is σ = 13220134445514. Its totient is φ = 13220134445512.

The previous prime is 13220134445501. The next prime is 13220134445527. The reversal of 13220134445513 is 31554443102231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7561768517689 + 5658365927824 = 2749867^2 + 2378732^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220134445513 - 2⁶ = 13220134445449 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220134445593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610067222756 + 6610067222757.

It is an arithmetic number, because the mean of its divisors is an integer number (6610067222757).

Almost surely, 2^{13220134445513} is an apocalyptic number.

It is an amenable number.

13220134445513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220134445513 is an equidigital number, since it uses as much as digits as its factorization.

13220134445513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 13220134445513 its reverse (31554443102231), we get a palindrome (44774577547744).

The spelling of 13220134445513 in words is "thirteen trillion, two hundred twenty billion, one hundred thirty-four million, four hundred forty-five thousand, five hundred thirteen".