13420012087 has 2 divisors, whose sum is σ = 13420012088. Its totient is φ = 13420012086.

The previous prime is 13420012061. The next prime is 13420012183. The reversal of 13420012087 is 78021002431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13420012087 - 2⁷ = 13420011959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13420042087) 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, 6710006043 + 6710006044.

It is an arithmetic number, because the mean of its divisors is an integer number (6710006044).

Almost surely, 2^13420012087 is an apocalyptic number.

13420012087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420012087 is an equidigital number, since it uses as much as digits as its factorization.

13420012087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 13420012087 in words is "thirteen billion, four hundred twenty million, twelve thousand, eighty-seven".