321042620042 has 32 divisors (see below), whose sum is σ = 495713433600. Its totient is φ = 155894010048.

The previous prime is 321042620033. The next prime is 321042620089. The reversal of 321042620042 is 240026240123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321042619993 and 321042620020.

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, 2228084 + ... + 2367792.

It is an arithmetic number, because the mean of its divisors is an integer number (15491044800).

Almost surely, 2^321042620042 is an apocalyptic number.

321042620042 is a deficient number, since it is larger than the sum of its proper divisors (174670813558).

321042620042 is a wasteful number, since it uses less digits than its factorization.

321042620042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140030.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 321042620042 its reverse (240026240123), we get a palindrome (561068860165).

The spelling of 321042620042 in words is "three hundred twenty-one billion, forty-two million, six hundred twenty thousand, forty-two".