321213203241020 has 96 divisors (see below), whose sum is σ = 678834409397760. Its totient is φ = 127671384637440.

The previous prime is 321213203241017. The next prime is 321213203241041. The reversal of 321213203241020 is 20142302312123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4667880134 + ... + 4667948946.

It is an arithmetic number, because the mean of its divisors is an integer number (7071191764560).

Almost surely, 2^{321213203241020} is an apocalyptic number.

It is an amenable number.

321213203241020 is an abundant number, since it is smaller than the sum of its proper divisors (357621206156740).

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

321213203241020 is a wasteful number, since it uses less digits than its factorization.

321213203241020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71175 (or 71173 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 321213203241020 its reverse (20142302312123), we get a palindrome (341355505553143).

The spelling of 321213203241020 in words is "three hundred twenty-one trillion, two hundred thirteen billion, two hundred three million, two hundred forty-one thousand, twenty".