211421023343 has 2 divisors, whose sum is σ = 211421023344. Its totient is φ = 211421023342.

The previous prime is 211421023321. The next prime is 211421023459. The reversal of 211421023343 is 343320124112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211421023343 - 2³⁰ = 210347281519 is a prime.

It is a super-2 number, since 2×211421023343² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211421023313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710511671 + 105710511672.

It is an arithmetic number, because the mean of its divisors is an integer number (105710511672).

Almost surely, 2^211421023343 is an apocalyptic number.

211421023343 is a deficient number, since it is larger than the sum of its proper divisors (1).

211421023343 is an equidigital number, since it uses as much as digits as its factorization.

211421023343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 211421023343 its reverse (343320124112), we get a palindrome (554741147455).

The spelling of 211421023343 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-three thousand, three hundred forty-three".