420104351 has 2 divisors, whose sum is σ = 420104352. Its totient is φ = 420104350.

The previous prime is 420104329. The next prime is 420104369. The reversal of 420104351 is 153401024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420104351 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420104651) 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, 210052175 + 210052176.

It is an arithmetic number, because the mean of its divisors is an integer number (210052176).

Almost surely, 2^420104351 is an apocalyptic number.

420104351 is a deficient number, since it is larger than the sum of its proper divisors (1).

420104351 is an equidigital number, since it uses as much as digits as its factorization.

420104351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 420104351 is about 20496.4472775162. The cubic root of 420104351 is about 748.9492551196.

Adding to 420104351 its reverse (153401024), we get a palindrome (573505375).

The spelling of 420104351 in words is "four hundred twenty million, one hundred four thousand, three hundred fifty-one".