43111340212 has 6 divisors (see below), whose sum is σ = 75444845378. Its totient is φ = 21555670104.

The previous prime is 43111340177. The next prime is 43111340219. The reversal of 43111340212 is 21204311134.

It can be written as a sum of positive squares in only one way, i.e., 42536587536 + 574752676 = 206244^2 + 23974^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43111340219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5388917523 + ... + 5388917530.

Almost surely, 2^43111340212 is an apocalyptic number.

It is an amenable number.

43111340212 is a deficient number, since it is larger than the sum of its proper divisors (32333505166).

43111340212 is a wasteful number, since it uses less digits than its factorization.

43111340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777835057 (or 10777835055 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 43111340212 its reverse (21204311134), we get a palindrome (64315651346).

The spelling of 43111340212 in words is "forty-three billion, one hundred eleven million, three hundred forty thousand, two hundred twelve".