43231340440000 has 70 divisors (see below), whose sum is σ = 107199674204744. Its totient is φ = 17292536160000.

The previous prime is 43231340439997. The next prime is 43231340440007. The reversal of 43231340440000 is 4404313234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43231340440007) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 540351756 + ... + 540431755.

Almost surely, 2^{43231340440000} is an apocalyptic number.

43231340440000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43231340440000 is an abundant number, since it is smaller than the sum of its proper divisors (63968333764744).

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

43231340440000 is an equidigital number, since it uses as much as digits as its factorization.

43231340440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080783543 (or 1080783518 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 43231340440000 its reverse (4404313234), we get a palindrome (43235744753234).

The spelling of 43231340440000 in words is "forty-three trillion, two hundred thirty-one billion, three hundred forty million, four hundred forty thousand".