211443414043 has 4 divisors (see below), whose sum is σ = 211650915960. Its totient is φ = 211235912128.

The previous prime is 211443413989. The next prime is 211443414073. The reversal of 211443414043 is 340414344112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211443414043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211443413996 and 211443414014.

It is not an unprimeable number, because it can be changed into a prime (211443414073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103749430 + ... + 103751467.

It is an arithmetic number, because the mean of its divisors is an integer number (52912728990).

Almost surely, 2^211443414043 is an apocalyptic number.

211443414043 is a deficient number, since it is larger than the sum of its proper divisors (207501917).

211443414043 is a wasteful number, since it uses less digits than its factorization.

211443414043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207501916.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 211443414043 its reverse (340414344112), we get a palindrome (551857758155).

The spelling of 211443414043 in words is "two hundred eleven billion, four hundred forty-three million, four hundred fourteen thousand, forty-three".