43430043331 has 4 divisors (see below), whose sum is σ = 43717659664. Its totient is φ = 43142427000.

The previous prime is 43430043299. The next prime is 43430043341. The reversal of 43430043331 is 13334003434.

It is a happy number.

43430043331 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 43430043331 - 2⁵ = 43430043299 is a prime.

It is a super-2 number, since 2×43430043331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43430043331.

It is not an unprimeable number, because it can be changed into a prime (43430043341) 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, 143807940 + ... + 143808241.

It is an arithmetic number, because the mean of its divisors is an integer number (10929414916).

Almost surely, 2^43430043331 is an apocalyptic number.

43430043331 is a deficient number, since it is larger than the sum of its proper divisors (287616333).

43430043331 is a wasteful number, since it uses less digits than its factorization.

43430043331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287616332.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 43430043331 its reverse (13334003434), we get a palindrome (56764046765).

The spelling of 43430043331 in words is "forty-three billion, four hundred thirty million, forty-three thousand, three hundred thirty-one".