420130001 has 2 divisors, whose sum is σ = 420130002. Its totient is φ = 420130000.

The previous prime is 420129967. The next prime is 420130013. The reversal of 420130001 is 100031024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231040000 + 189090001 = 15200^2 + 13751^2 .

It is a cyclic number.

It is not a de Polignac number, because 420130001 - 2²² = 415935697 is a prime.

It is not a weakly prime, because it can be changed into another prime (420130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210065000 + 210065001.

It is an arithmetic number, because the mean of its divisors is an integer number (210065001).

Almost surely, 2^420130001 is an apocalyptic number.

It is an amenable number.

420130001 is a deficient number, since it is larger than the sum of its proper divisors (1).

420130001 is an equidigital number, since it uses as much as digits as its factorization.

420130001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 420130001 is about 20497.0729861607. The cubic root of 420130001 is about 748.9644974892.

Adding to 420130001 its reverse (100031024), we get a palindrome (520161025).

The spelling of 420130001 in words is "four hundred twenty million, one hundred thirty thousand, one".