212321323030304 has 12 divisors (see below), whose sum is σ = 418007604715974. Its totient is φ = 106160661515136.

The previous prime is 212321323030247. The next prime is 212321323030343. The reversal of 212321323030304 is 403030323123212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 195135754810000 + 17185568220304 = 13969100^2 + 4145548^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3317520672317 + ... + 3317520672380.

Almost surely, 2^{212321323030304} is an apocalyptic number.

It is an amenable number.

212321323030304 is a deficient number, since it is larger than the sum of its proper divisors (205686281685670).

212321323030304 is an equidigital number, since it uses as much as digits as its factorization.

212321323030304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635041344707 (or 6635041344699 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 212321323030304 its reverse (403030323123212), we get a palindrome (615351646153516).

The spelling of 212321323030304 in words is "two hundred twelve trillion, three hundred twenty-one billion, three hundred twenty-three million, thirty thousand, three hundred four".