320442043430000 has 100 divisors (see below), whose sum is σ = 780108546425208. Its totient is φ = 127468657440000.

The previous prime is 320442043429987. The next prime is 320442043430081. The reversal of 320442043430000 is 34340244023.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86709902 + ... + 90329901.

Almost surely, 2^{320442043430000} is an apocalyptic number.

It is an amenable number.

320442043430000 is an abundant number, since it is smaller than the sum of its proper divisors (459666502995208).

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

320442043430000 is a wasteful number, since it uses less digits than its factorization.

320442043430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177040012 (or 177039991 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 320442043430000 its reverse (34340244023), we get a palindrome (320476383674023).

The spelling of 320442043430000 in words is "three hundred twenty trillion, four hundred forty-two billion, forty-three million, four hundred thirty thousand".