211109948279443 has 2 divisors, whose sum is σ = 211109948279444. Its totient is φ = 211109948279442.

The previous prime is 211109948279407. The next prime is 211109948279449. The reversal of 211109948279443 is 344972849901112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211109948279443 - 2¹⁷ = 211109948148371 is a prime.

It is not a weakly prime, because it can be changed into another prime (211109948279449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105554974139721 + 105554974139722.

It is an arithmetic number, because the mean of its divisors is an integer number (105554974139722).

Almost surely, 2^{211109948279443} is an apocalyptic number.

211109948279443 is a deficient number, since it is larger than the sum of its proper divisors (1).

211109948279443 is an equidigital number, since it uses as much as digits as its factorization.

211109948279443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 211109948279443 in words is "two hundred eleven trillion, one hundred nine billion, nine hundred forty-eight million, two hundred seventy-nine thousand, four hundred forty-three".