320040440143 has 16 divisors (see below), whose sum is σ = 327641371200. Its totient is φ = 312527496960.

The previous prime is 320040440077. The next prime is 320040440201. The reversal of 320040440143 is 341044040023.

It is a cyclic number.

It is not a de Polignac number, because 320040440143 - 2³⁷ = 182601486671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320040440843) 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 15 ways as a sum of consecutive naturals, for example, 29658193 + ... + 29668981.

It is an arithmetic number, because the mean of its divisors is an integer number (20477585700).

Almost surely, 2^320040440143 is an apocalyptic number.

320040440143 is a deficient number, since it is larger than the sum of its proper divisors (7600931057).

320040440143 is a wasteful number, since it uses less digits than its factorization.

320040440143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14802.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 320040440143 its reverse (341044040023), we get a palindrome (661084480166).

The spelling of 320040440143 in words is "three hundred twenty billion, forty million, four hundred forty thousand, one hundred forty-three".