420130019 has 2 divisors, whose sum is σ = 420130020. Its totient is φ = 420130018.

The previous prime is 420130013. The next prime is 420130021. The reversal of 420130019 is 910031024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420130019 is a prime.

It is a super-2 number, since 2×420130019² = 353018465729880722, which contains 22 as substring.

Together with 420130021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420130013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210065009 + 210065010.

It is an arithmetic number, because the mean of its divisors is an integer number (210065010).

Almost surely, 2^420130019 is an apocalyptic number.

420130019 is a deficient number, since it is larger than the sum of its proper divisors (1).

420130019 is an equidigital number, since it uses as much as digits as its factorization.

420130019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 420130019 is about 20497.0734252478. The cubic root of 420130019 is about 748.9645081854.

The spelling of 420130019 in words is "four hundred twenty million, one hundred thirty thousand, nineteen".