321440141420232 has 64 divisors (see below), whose sum is σ = 825322750326720. Its totient is φ = 104250418576128.

The previous prime is 321440141420231. The next prime is 321440141420239. The reversal of 321440141420232 is 232024141044123.

It is a junction number, because it is equal to n+sod(n) for n = 321440141420193 and 321440141420202.

It is not an unprimeable number, because it can be changed into a prime (321440141420231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261593023 + ... + 262818929.

It is an arithmetic number, because the mean of its divisors is an integer number (12895667973855).

Almost surely, 2^{321440141420232} is an apocalyptic number.

It is an amenable number.

321440141420232 is an abundant number, since it is smaller than the sum of its proper divisors (503882608906488).

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

321440141420232 is a wasteful number, since it uses less digits than its factorization.

321440141420232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521230 (or 1521226 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 321440141420232 its reverse (232024141044123), we get a palindrome (553464282464355).

The spelling of 321440141420232 in words is "three hundred twenty-one trillion, four hundred forty billion, one hundred forty-one million, four hundred twenty thousand, two hundred thirty-two".