43143431013 has 12 divisors (see below), whose sum is σ = 62419958380. Its totient is φ = 28715363136.

The previous prime is 43143431003. The next prime is 43143431017. The reversal of 43143431013 is 31013434134.

43143431013 is a `hidden beast` number, since 4 + 314 + 34 + 310 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2526268644 + 40617162369 = 50262^2 + 201537^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43143431013 is a prime.

It is a super-2 number, since 2×43143431013² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143431017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3904528 + ... + 3915561.

Almost surely, 2^43143431013 is an apocalyptic number.

It is an amenable number.

43143431013 is a deficient number, since it is larger than the sum of its proper divisors (19276527367).

43143431013 is a wasteful number, since it uses less digits than its factorization.

43143431013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820708 (or 7820705 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 43143431013 its reverse (31013434134), we get a palindrome (74156865147).

The spelling of 43143431013 in words is "forty-three billion, one hundred forty-three million, four hundred thirty-one thousand, thirteen".