43105205212 has 12 divisors (see below), whose sum is σ = 75438253800. Its totient is φ = 21551418416.

The previous prime is 43105205203. The next prime is 43105205233. The reversal of 43105205212 is 21250250134.

It is a congruent number.

It is an unprimeable number.

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, 211462 + ... + 361837.

It is an arithmetic number, because the mean of its divisors is an integer number (6286521150).

Almost surely, 2^43105205212 is an apocalyptic number.

It is an amenable number.

43105205212 is a deficient number, since it is larger than the sum of its proper divisors (32333048588).

43105205212 is a wasteful number, since it uses less digits than its factorization.

43105205212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592100 (or 592098 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 43105205212 its reverse (21250250134), we get a palindrome (64355455346).

The spelling of 43105205212 in words is "forty-three billion, one hundred five million, two hundred five thousand, two hundred twelve".