211444323401 has 2 divisors, whose sum is σ = 211444323402. Its totient is φ = 211444323400.

The previous prime is 211444323371. The next prime is 211444323407. The reversal of 211444323401 is 104323444112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210938118400 + 506205001 = 459280^2 + 22499^2 .

It is a cyclic number.

It is not a de Polignac number, because 211444323401 - 2¹⁰ = 211444322377 is a prime.

It is not a weakly prime, because it can be changed into another prime (211444323407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105722161700 + 105722161701.

It is an arithmetic number, because the mean of its divisors is an integer number (105722161701).

Almost surely, 2^211444323401 is an apocalyptic number.

It is an amenable number.

211444323401 is a deficient number, since it is larger than the sum of its proper divisors (1).

211444323401 is an equidigital number, since it uses as much as digits as its factorization.

211444323401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 211444323401 its reverse (104323444112), we get a palindrome (315767767513).

The spelling of 211444323401 in words is "two hundred eleven billion, four hundred forty-four million, three hundred twenty-three thousand, four hundred one".