320144043530 has 32 divisors (see below), whose sum is σ = 577546562880. Its totient is φ = 127771712640.

The previous prime is 320144043509. The next prime is 320144043547. The reversal of 320144043530 is 35340441023.

It is a junction number, because it is equal to n+sod(n) for n = 320144043493 and 320144043502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20973041 + ... + 20988299.

It is an arithmetic number, because the mean of its divisors is an integer number (18048330090).

Almost surely, 2^320144043530 is an apocalyptic number.

320144043530 is a deficient number, since it is larger than the sum of its proper divisors (257402519350).

320144043530 is a wasteful number, since it uses less digits than its factorization.

320144043530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19814.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 320144043530 its reverse (35340441023), we get a palindrome (355484484553).

The spelling of 320144043530 in words is "three hundred twenty billion, one hundred forty-four million, forty-three thousand, five hundred thirty".