213203212300321 has 4 divisors (see below), whose sum is σ = 213248258409492. Its totient is φ = 213158166191152.

The previous prime is 213203212300291. The next prime is 213203212300343. The reversal of 213203212300321 is 123003212302312.

213203212300321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34167064467600 + 179036147832721 = 5845260^2 + 13380439^2 .

It is a cyclic number.

It is not a de Polignac number, because 213203212300321 - 2⁷ = 213203212300193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213203212300391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22523047486 + ... + 22523056951.

It is an arithmetic number, because the mean of its divisors is an integer number (53312064602373).

Almost surely, 2^{213203212300321} is an apocalyptic number.

It is an amenable number.

213203212300321 is a deficient number, since it is larger than the sum of its proper divisors (45046109171).

213203212300321 is an equidigital number, since it uses as much as digits as its factorization.

213203212300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45046109170.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 213203212300321 its reverse (123003212302312), we get a palindrome (336206424602633).

The spelling of 213203212300321 in words is "two hundred thirteen trillion, two hundred three billion, two hundred twelve million, three hundred thousand, three hundred twenty-one".