321213141144340 has 24 divisors (see below), whose sum is σ = 677937282825600. Its totient is φ = 127839601901088.

The previous prime is 321213141144319. The next prime is 321213141144409. The reversal of 321213141144340 is 43441141312123.

It is a junction number, because it is equal to n+sod(n) for n = 321213141144296 and 321213141144305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40353405712 + ... + 40353413671.

It is an arithmetic number, because the mean of its divisors is an integer number (28247386784400).

Almost surely, 2^{321213141144340} is an apocalyptic number.

It is an amenable number.

321213141144340 is an abundant number, since it is smaller than the sum of its proper divisors (356724141681260).

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

321213141144340 is a wasteful number, since it uses less digits than its factorization.

321213141144340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80706819591 (or 80706819589 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 321213141144340 its reverse (43441141312123), we get a palindrome (364654282456463).

The spelling of 321213141144340 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred forty-one million, one hundred forty-four thousand, three hundred forty".