420103212443437 has 2 divisors, whose sum is σ = 420103212443438. Its totient is φ = 420103212443436.

The previous prime is 420103212443401. The next prime is 420103212443477. The reversal of 420103212443437 is 734344212301024.

It is an a-pointer prime, because the next prime (420103212443477) can be obtained adding 420103212443437 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400713157588041 + 19390054855396 = 20017821^2 + 4403414^2 .

It is a cyclic number.

It is not a de Polignac number, because 420103212443437 - 2¹¹ = 420103212441389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420103212443437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420103212443477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210051606221718 + 210051606221719.

It is an arithmetic number, because the mean of its divisors is an integer number (210051606221719).

Almost surely, 2^{420103212443437} is an apocalyptic number.

It is an amenable number.

420103212443437 is a deficient number, since it is larger than the sum of its proper divisors (1).

420103212443437 is an equidigital number, since it uses as much as digits as its factorization.

420103212443437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 420103212443437 in words is "four hundred twenty trillion, one hundred three billion, two hundred twelve million, four hundred forty-three thousand, four hundred thirty-seven".