43312240543 has 24 divisors (see below), whose sum is σ = 51206363136. Its totient is φ = 36315770400.

The previous prime is 43312240541. The next prime is 43312240579. The reversal of 43312240543 is 34504221334.

It is a happy number.

It is not a de Polignac number, because 43312240543 - 2¹ = 43312240541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43312240541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2390946 + ... + 2408992.

It is an arithmetic number, because the mean of its divisors is an integer number (2133598464).

Almost surely, 2^43312240543 is an apocalyptic number.

43312240543 is a deficient number, since it is larger than the sum of its proper divisors (7894122593).

43312240543 is a wasteful number, since it uses less digits than its factorization.

43312240543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19375 (or 19362 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 43312240543 its reverse (34504221334), we get a palindrome (77816461877).

The spelling of 43312240543 in words is "forty-three billion, three hundred twelve million, two hundred forty thousand, five hundred forty-three".