212321323331320 has 64 divisors (see below), whose sum is σ = 549446627551680. Its totient is φ = 72332214230016.

The previous prime is 212321323331167. The next prime is 212321323331371. The reversal of 212321323331320 is 23133323123212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2414893749 + ... + 2414981668.

It is an arithmetic number, because the mean of its divisors is an integer number (8585103555495).

Almost surely, 2^{212321323331320} is an apocalyptic number.

212321323331320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212321323331320 is an abundant number, since it is smaller than the sum of its proper divisors (337125304220360).

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

212321323331320 is a wasteful number, since it uses less digits than its factorization.

212321323331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829875592 (or 4829875588 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 212321323331320 its reverse (23133323123212), we get a palindrome (235454646454532).

The spelling of 212321323331320 in words is "two hundred twelve trillion, three hundred twenty-one billion, three hundred twenty-three million, three hundred thirty-one thousand, three hundred twenty".