321440213214 has 20 divisors (see below), whose sum is σ = 720264181824.
Its totient is φ = 107146737684.
The previous prime is 321440213131. The next prime is 321440213233. The reversal of 321440213214 is 412312044123.
Adding to 321440213214 its reverse (412312044123), we get a palindrome (733752257337).
321440213214 is a `hidden beast` number, since 3 + 2 + 1 + 440 + 2 + 1 + 3 + 214 = 666.
It is a super-3 number, since 3×3214402132143 (a number of 35 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 992099262 + ... + 992099585.
Almost surely, 2321440213214 is an apocalyptic number.
321440213214 is an abundant number, since it is smaller than the sum of its proper divisors (398823968610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
321440213214 is a wasteful number, since it uses less digits than its factorization.
321440213214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1984198861 (or 1984198852 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 27.
The spelling of 321440213214 in words is "three hundred twenty-one billion, four hundred forty million, two hundred thirteen thousand, two hundred fourteen".