211440312443 has 16 divisors (see below), whose sum is σ = 228647665920. Its totient is φ = 194843861856.

The previous prime is 211440312373. The next prime is 211440312451. The reversal of 211440312443 is 344213044112.

211440312443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211440312443 - 2¹⁰ = 211440311419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211440318443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2608280 + ... + 2688122.

It is an arithmetic number, because the mean of its divisors is an integer number (14290479120).

Almost surely, 2^211440312443 is an apocalyptic number.

211440312443 is a deficient number, since it is larger than the sum of its proper divisors (17207353477).

211440312443 is a wasteful number, since it uses less digits than its factorization.

211440312443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83666.

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

Adding to 211440312443 its reverse (344213044112), we get a palindrome (555653356555).

The spelling of 211440312443 in words is "two hundred eleven billion, four hundred forty million, three hundred twelve thousand, four hundred forty-three".