212121300323 has 8 divisors (see below), whose sum is σ = 212349828000. Its totient is φ = 211892883840.

The previous prime is 212121300289. The next prime is 212121300341. The reversal of 212121300323 is 323003121212.

212121300323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212121300323 - 2¹² = 212121296227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212121300295 and 212121300304.

It is not an unprimeable number, because it can be changed into a prime (212121350323) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4116011 + ... + 4167227.

It is an arithmetic number, because the mean of its divisors is an integer number (26543728500).

Almost surely, 2^212121300323 is an apocalyptic number.

212121300323 is a deficient number, since it is larger than the sum of its proper divisors (228527677).

212121300323 is a wasteful number, since it uses less digits than its factorization.

212121300323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55597.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212121300323 its reverse (323003121212), we get a palindrome (535124421535).

The spelling of 212121300323 in words is "two hundred twelve billion, one hundred twenty-one million, three hundred thousand, three hundred twenty-three".