43423221012 has 48 divisors (see below), whose sum is σ = 102919008192. Its totient is φ = 14246910720.

The previous prime is 43423221011. The next prime is 43423221019. The reversal of 43423221012 is 21012232434.

It is a happy number.

It is a super-3 number, since 3×43423221012³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43423221011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379638 + ... + 480594.

It is an arithmetic number, because the mean of its divisors is an integer number (2144146004).

Almost surely, 2^43423221012 is an apocalyptic number.

It is an amenable number.

43423221012 is an abundant number, since it is smaller than the sum of its proper divisors (59495787180).

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

43423221012 is a wasteful number, since it uses less digits than its factorization.

43423221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101528 (or 101526 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43423221012 its reverse (21012232434), we get a palindrome (64435453446).

The spelling of 43423221012 in words is "forty-three billion, four hundred twenty-three million, two hundred twenty-one thousand, twelve".