320042543425 has 12 divisors (see below), whose sum is σ = 432930277296. Its totient is φ = 232758213200.

The previous prime is 320042543423. The next prime is 320042543437. The reversal of 320042543425 is 524345240023.

It is not a de Polignac number, because 320042543425 - 2¹ = 320042543423 is a prime.

It is a super-3 number, since 3×320042543425³ (a number of 35 digits) contains 333 as substring.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 581895259 + ... + 581895808.

It is an arithmetic number, because the mean of its divisors is an integer number (36077523108).

Almost surely, 2^320042543425 is an apocalyptic number.

It is an amenable number.

320042543425 is a deficient number, since it is larger than the sum of its proper divisors (112887733871).

320042543425 is a wasteful number, since it uses less digits than its factorization.

320042543425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163791088 (or 1163791083 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 320042543425 its reverse (524345240023), we get a palindrome (844387783448).

The spelling of 320042543425 in words is "three hundred twenty billion, forty-two million, five hundred forty-three thousand, four hundred twenty-five".