321213433034312 has 64 divisors (see below), whose sum is σ = 741264103708800. Its totient is φ = 127073045721600.

The previous prime is 321213433034311. The next prime is 321213433034317. The reversal of 321213433034312 is 213430334312123.

It is not an unprimeable number, because it can be changed into a prime (321213433034311) 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, 356691812 + ... + 357591212.

It is an arithmetic number, because the mean of its divisors is an integer number (11582251620450).

Almost surely, 2^{321213433034312} is an apocalyptic number.

It is an amenable number.

321213433034312 is an abundant number, since it is smaller than the sum of its proper divisors (420050670674488).

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

321213433034312 is a wasteful number, since it uses less digits than its factorization.

321213433034312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390006 (or 1390002 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 321213433034312 its reverse (213430334312123), we get a palindrome (534643767346435).

The spelling of 321213433034312 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred thirty-three million, thirty-four thousand, three hundred twelve".