13520210087 has 2 divisors, whose sum is σ = 13520210088. Its totient is φ = 13520210086.

The previous prime is 13520210063. The next prime is 13520210117. The reversal of 13520210087 is 78001202531.

13520210087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13520210087 - 2⁶ = 13520210023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13520213087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760105043 + 6760105044.

It is an arithmetic number, because the mean of its divisors is an integer number (6760105044).

Almost surely, 2^13520210087 is an apocalyptic number.

13520210087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13520210087 is an equidigital number, since it uses as much as digits as its factorization.

13520210087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 13520210087 in words is "thirteen billion, five hundred twenty million, two hundred ten thousand, eighty-seven".