420244332413443 has 2 divisors, whose sum is σ = 420244332413444. Its totient is φ = 420244332413442.

The previous prime is 420244332413393. The next prime is 420244332413497. The reversal of 420244332413443 is 344314233442024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420244332413443 - 2¹³ = 420244332405251 is a prime.

It is a super-3 number, since 3×420244332413443³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 420244332413443.

It is not a weakly prime, because it can be changed into another prime (420244632413443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210122166206721 + 210122166206722.

It is an arithmetic number, because the mean of its divisors is an integer number (210122166206722).

Almost surely, 2^{420244332413443} is an apocalyptic number.

420244332413443 is a deficient number, since it is larger than the sum of its proper divisors (1).

420244332413443 is an equidigital number, since it uses as much as digits as its factorization.

420244332413443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2654208, while the sum is 43.

Adding to 420244332413443 its reverse (344314233442024), we get a palindrome (764558565855467).

The spelling of 420244332413443 in words is "four hundred twenty trillion, two hundred forty-four billion, three hundred thirty-two million, four hundred thirteen thousand, four hundred forty-three".