42420130187 has 2 divisors, whose sum is σ = 42420130188. Its totient is φ = 42420130186.

The previous prime is 42420130169. The next prime is 42420130241. The reversal of 42420130187 is 78103102424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42420130187 - 2¹⁴ = 42420113803 is a prime.

It is not a weakly prime, because it can be changed into another prime (42420120187) 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, 21210065093 + 21210065094.

It is an arithmetic number, because the mean of its divisors is an integer number (21210065094).

Almost surely, 2^42420130187 is an apocalyptic number.

42420130187 is a deficient number, since it is larger than the sum of its proper divisors (1).

42420130187 is an equidigital number, since it uses as much as digits as its factorization.

42420130187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 42420130187 in words is "forty-two billion, four hundred twenty million, one hundred thirty thousand, one hundred eighty-seven".