30402420142187 has 2 divisors, whose sum is σ = 30402420142188. Its totient is φ = 30402420142186.

The previous prime is 30402420142177. The next prime is 30402420142217. The reversal of 30402420142187 is 78124102420403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30402420142187 - 2¹⁸ = 30402419880043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30402420142187.

It is not a weakly prime, because it can be changed into another prime (30402420142117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201210071093 + 15201210071094.

It is an arithmetic number, because the mean of its divisors is an integer number (15201210071094).

Almost surely, 2^{30402420142187} is an apocalyptic number.

30402420142187 is a deficient number, since it is larger than the sum of its proper divisors (1).

30402420142187 is an equidigital number, since it uses as much as digits as its factorization.

30402420142187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 30402420142187 in words is "thirty trillion, four hundred two billion, four hundred twenty million, one hundred forty-two thousand, one hundred eighty-seven".