211444320293 has 2 divisors, whose sum is σ = 211444320294. Its totient is φ = 211444320292.

The previous prime is 211444320289. The next prime is 211444320317. The reversal of 211444320293 is 392023444112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186156005764 + 25288314529 = 431458^2 + 159023^2 .

It is a cyclic number.

It is not a de Polignac number, because 211444320293 - 2² = 211444320289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211444320223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105722160146 + 105722160147.

It is an arithmetic number, because the mean of its divisors is an integer number (105722160147).

Almost surely, 2^211444320293 is an apocalyptic number.

It is an amenable number.

211444320293 is a deficient number, since it is larger than the sum of its proper divisors (1).

211444320293 is an equidigital number, since it uses as much as digits as its factorization.

211444320293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 211444320293 in words is "two hundred eleven billion, four hundred forty-four million, three hundred twenty thousand, two hundred ninety-three".