13520530544123 has 2 divisors, whose sum is σ = 13520530544124. Its totient is φ = 13520530544122.

The previous prime is 13520530544119. The next prime is 13520530544153. The reversal of 13520530544123 is 32144503502531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13520530544123 - 2² = 13520530544119 is a prime.

It is not a weakly prime, because it can be changed into another prime (13520530544113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760265272061 + 6760265272062.

It is an arithmetic number, because the mean of its divisors is an integer number (6760265272062).

Almost surely, 2^{13520530544123} is an apocalyptic number.

13520530544123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13520530544123 is an equidigital number, since it uses as much as digits as its factorization.

13520530544123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 13520530544123 in words is "thirteen trillion, five hundred twenty billion, five hundred thirty million, five hundred forty-four thousand, one hundred twenty-three".