211403121343 has 2 divisors, whose sum is σ = 211403121344. Its totient is φ = 211403121342.

The previous prime is 211403121341. The next prime is 211403121443. The reversal of 211403121343 is 343121304112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211403121343 - 2¹ = 211403121341 is a prime.

Together with 211403121341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211403121341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105701560671 + 105701560672.

It is an arithmetic number, because the mean of its divisors is an integer number (105701560672).

Almost surely, 2^211403121343 is an apocalyptic number.

211403121343 is a deficient number, since it is larger than the sum of its proper divisors (1).

211403121343 is an equidigital number, since it uses as much as digits as its factorization.

211403121343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 211403121343 its reverse (343121304112), we get a palindrome (554524425455).

The spelling of 211403121343 in words is "two hundred eleven billion, four hundred three million, one hundred twenty-one thousand, three hundred forty-three".