43431020511042 has 8 divisors (see below), whose sum is σ = 86862041022096. Its totient is φ = 14477006837012.

The previous prime is 43431020510993. The next prime is 43431020511059. The reversal of 43431020511042 is 24011502013434.

It is a sphenic number, since it is the product of 3 distinct primes.

43431020511042 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3619251709248 + ... + 3619251709259.

It is an arithmetic number, because the mean of its divisors is an integer number (10857755127762).

Almost surely, 2^{43431020511042} is an apocalyptic number.

43431020511042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

43431020511042 is a wasteful number, since it uses less digits than its factorization.

43431020511042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238503418512.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 43431020511042 its reverse (24011502013434), we get a palindrome (67442522524476).

The spelling of 43431020511042 in words is "forty-three trillion, four hundred thirty-one billion, twenty million, five hundred eleven thousand, forty-two".