43040334431 has 4 divisors (see below), whose sum is σ = 43041083352. Its totient is φ = 43039585512.

The previous prime is 43040334371. The next prime is 43040334451. The reversal of 43040334431 is 13443304034.

43040334431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43040334431 - 2²⁶ = 42973225567 is a prime.

It is a super-2 number, since 2×43040334431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43040334394 and 43040334403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43040334451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280376 + ... + 405821.

It is an arithmetic number, because the mean of its divisors is an integer number (10760270838).

Almost surely, 2^43040334431 is an apocalyptic number.

43040334431 is a deficient number, since it is larger than the sum of its proper divisors (748921).

43040334431 is an equidigital number, since it uses as much as digits as its factorization.

43040334431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748920.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 43040334431 its reverse (13443304034), we get a palindrome (56483638465).

The spelling of 43040334431 in words is "forty-three billion, forty million, three hundred thirty-four thousand, four hundred thirty-one".