420350228813 has 2 divisors, whose sum is σ = 420350228814. Its totient is φ = 420350228812.

The previous prime is 420350228797. The next prime is 420350228869. The reversal of 420350228813 is 318822053024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402922796644 + 17427432169 = 634762^2 + 132013^2 .

It is a cyclic number.

It is not a de Polignac number, because 420350228813 - 2⁴ = 420350228797 is a prime.

It is a super-3 number, since 3×420350228813³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420350228873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210175114406 + 210175114407.

It is an arithmetic number, because the mean of its divisors is an integer number (210175114407).

Almost surely, 2^420350228813 is an apocalyptic number.

It is an amenable number.

420350228813 is a deficient number, since it is larger than the sum of its proper divisors (1).

420350228813 is an equidigital number, since it uses as much as digits as its factorization.

420350228813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 420350228813 in words is "four hundred twenty billion, three hundred fifty million, two hundred twenty-eight thousand, eight hundred thirteen".