213143443443 has 32 divisors (see below), whose sum is σ = 361486540800. Its totient is φ = 121590799488.

The previous prime is 213143443417. The next prime is 213143443511. The reversal of 213143443443 is 344344341312.

213143443443 is a `hidden beast` number, since 2 + 131 + 43 + 4 + 43 + 443 = 666.

It is not a de Polignac number, because 213143443443 - 2⁹ = 213143442931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213143443398 and 213143443407.

It is not an unprimeable number, because it can be changed into a prime (213143443043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838803 + ... + 1062956.

It is an arithmetic number, because the mean of its divisors is an integer number (11296454400).

Almost surely, 2^213143443443 is an apocalyptic number.

213143443443 is a deficient number, since it is larger than the sum of its proper divisors (148343097357).

213143443443 is a wasteful number, since it uses less digits than its factorization.

213143443443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902368 (or 1902362 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 213143443443 its reverse (344344341312), we get a palindrome (557487784755).

The spelling of 213143443443 in words is "two hundred thirteen billion, one hundred forty-three million, four hundred forty-three thousand, four hundred forty-three".