43031440143 has 12 divisors (see below), whose sum is σ = 62240190480. Its totient is φ = 28649011776.

The previous prime is 43031440097. The next prime is 43031440147. The reversal of 43031440143 is 34104413034.

It is not a de Polignac number, because 43031440143 - 2¹⁸ = 43031177999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43031440147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3210858 + ... + 3224231.

It is an arithmetic number, because the mean of its divisors is an integer number (5186682540).

Almost surely, 2^43031440143 is an apocalyptic number.

43031440143 is a deficient number, since it is larger than the sum of its proper divisors (19208750337).

43031440143 is a wasteful number, since it uses less digits than its factorization.

43031440143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435838 (or 6435835 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 43031440143 its reverse (34104413034), we get a palindrome (77135853177).

The spelling of 43031440143 in words is "forty-three billion, thirty-one million, four hundred forty thousand, one hundred forty-three".