321213404140332 has 96 divisors (see below), whose sum is σ = 818989785841920. Its totient is φ = 97176139499520.

The previous prime is 321213404140309. The next prime is 321213404140333. The reversal of 321213404140332 is 233041404312123.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 321213404140293 and 321213404140302.

It is not an unprimeable number, because it can be changed into a prime (321213404140333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192458403 + ... + 194120229.

It is an arithmetic number, because the mean of its divisors is an integer number (8531143602520).

Almost surely, 2^{321213404140332} is an apocalyptic number.

It is an amenable number.

321213404140332 is an abundant number, since it is smaller than the sum of its proper divisors (497776381701588).

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

321213404140332 is a wasteful number, since it uses less digits than its factorization.

321213404140332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664271 (or 1664269 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 321213404140332 its reverse (233041404312123), we get a palindrome (554254808452455).

The spelling of 321213404140332 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred four million, one hundred forty thousand, three hundred thirty-two".