43143040020 has 48 divisors (see below), whose sum is σ = 120822242688. Its totient is φ = 11502741120.

The previous prime is 43143040013. The next prime is 43143040067. The reversal of 43143040020 is 2004034134.

It is a super-2 number, since 2×43143040020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287497 + ... + 411023.

It is an arithmetic number, because the mean of its divisors is an integer number (2517130056).

Almost surely, 2^43143040020 is an apocalyptic number.

It is an amenable number.

43143040020 is an abundant number, since it is smaller than the sum of its proper divisors (77679202668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43143040020 is a wasteful number, since it uses less digits than its factorization.

43143040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129360 (or 129358 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 43143040020 its reverse (2004034134), we get a palindrome (45147074154).

The spelling of 43143040020 in words is "forty-three billion, one hundred forty-three million, forty thousand, twenty".