320042543424 has 56 divisors (see below), whose sum is σ = 846821804448. Its totient is φ = 106675484160.

The previous prime is 320042543423. The next prime is 320042543437. The reversal of 320042543424 is 424345240023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320042543423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6207994 + ... + 6259334.

Almost surely, 2^320042543424 is an apocalyptic number.

It is an amenable number.

320042543424 is an abundant number, since it is smaller than the sum of its proper divisors (526779261024).

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

320042543424 is a wasteful number, since it uses less digits than its factorization.

320042543424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83823 (or 83813 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 320042543424 its reverse (424345240023), we get a palindrome (744387783447).

The spelling of 320042543424 in words is "three hundred twenty billion, forty-two million, five hundred forty-three thousand, four hundred twenty-four".