212782127443 has 2 divisors, whose sum is σ = 212782127444. Its totient is φ = 212782127442.

The previous prime is 212782127423. The next prime is 212782127531. The reversal of 212782127443 is 344721287212.

212782127443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212782127443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212782127443.

It is not a weakly prime, because it can be changed into another prime (212782127423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106391063721 + 106391063722.

It is an arithmetic number, because the mean of its divisors is an integer number (106391063722).

Almost surely, 2^212782127443 is an apocalyptic number.

212782127443 is a deficient number, since it is larger than the sum of its proper divisors (1).

212782127443 is an equidigital number, since it uses as much as digits as its factorization.

212782127443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 43.

The spelling of 212782127443 in words is "two hundred twelve billion, seven hundred eighty-two million, one hundred twenty-seven thousand, four hundred forty-three".