321223512042 has 24 divisors (see below), whose sum is σ = 726244462944. Its totient is φ = 102419090664.

The previous prime is 321223511969. The next prime is 321223512061. The reversal of 321223512042 is 240215322123.

It is a junction number, because it is equal to n+sod(n) for n = 321223511997 and 321223512015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387950688 + ... + 387951515.

It is an arithmetic number, because the mean of its divisors is an integer number (30260185956).

Almost surely, 2^321223512042 is an apocalyptic number.

321223512042 is an abundant number, since it is smaller than the sum of its proper divisors (405020950902).

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

321223512042 is a wasteful number, since it uses less digits than its factorization.

321223512042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775902234 (or 775902231 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 321223512042 its reverse (240215322123), we get a palindrome (561438834165).

The spelling of 321223512042 in words is "three hundred twenty-one billion, two hundred twenty-three million, five hundred twelve thousand, forty-two".