212013443 has 8 divisors (see below), whose sum is σ = 226709280. Its totient is φ = 197564800.

The previous prime is 212013421. The next prime is 212013469. The reversal of 212013443 is 344310212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212013443 - 2⁸ = 212013187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212019443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60023 + ... + 63456.

It is an arithmetic number, because the mean of its divisors is an integer number (28338660).

Almost surely, 2^212013443 is an apocalyptic number.

212013443 is a deficient number, since it is larger than the sum of its proper divisors (14695837).

212013443 is a wasteful number, since it uses less digits than its factorization.

212013443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123597.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 212013443 is about 14560.6814057585. The cubic root of 212013443 is about 596.2857988108.

Adding to 212013443 its reverse (344310212), we get a palindrome (556323655).

The spelling of 212013443 in words is "two hundred twelve million, thirteen thousand, four hundred forty-three".