43505011212 has 48 divisors (see below), whose sum is σ = 109338835200. Its totient is φ = 13383885888.

The previous prime is 43505011139. The next prime is 43505011213. The reversal of 43505011212 is 21211050534.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43505011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056033 + ... + 1096455.

It is an arithmetic number, because the mean of its divisors is an integer number (2277892400).

Almost surely, 2^43505011212 is an apocalyptic number.

It is an amenable number.

43505011212 is an abundant number, since it is smaller than the sum of its proper divisors (65833823988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43505011212 is a wasteful number, since it uses less digits than its factorization.

43505011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47342 (or 47340 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 43505011212 its reverse (21211050534), we get a palindrome (64716061746).

The spelling of 43505011212 in words is "forty-three billion, five hundred five million, eleven thousand, two hundred twelve".