43121303212 has 12 divisors (see below), whose sum is σ = 81267071536. Its totient is φ = 19902139920.

The previous prime is 43121303207. The next prime is 43121303219. The reversal of 43121303212 is 21230312134.

43121303212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (43121303219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414627864 + ... + 414627967.

Almost surely, 2^43121303212 is an apocalyptic number.

It is an amenable number.

43121303212 is a deficient number, since it is larger than the sum of its proper divisors (38145768324).

43121303212 is a wasteful number, since it uses less digits than its factorization.

43121303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829255848 (or 829255846 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 43121303212 its reverse (21230312134), we get a palindrome (64351615346).

The spelling of 43121303212 in words is "forty-three billion, one hundred twenty-one million, three hundred three thousand, two hundred twelve".