321214024131440 has 80 divisors (see below), whose sum is σ = 814719814210656. Its totient is φ = 116804491238400.

The previous prime is 321214024131433. The next prime is 321214024131527. The reversal of 321214024131440 is 44131420412123.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 321214024131397 and 321214024131406.

It is a congruent number.

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, 189819314 + ... + 191504046.

Almost surely, 2^{321214024131440} is an apocalyptic number.

It is an amenable number.

321214024131440 is an abundant number, since it is smaller than the sum of its proper divisors (493505790079216).

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

321214024131440 is a wasteful number, since it uses less digits than its factorization.

321214024131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901418 (or 1901412 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 321214024131440 its reverse (44131420412123), we get a palindrome (365345444543563).

The spelling of 321214024131440 in words is "three hundred twenty-one trillion, two hundred fourteen billion, twenty-four million, one hundred thirty-one thousand, four hundred forty".