212320320021133 has 4 divisors (see below), whose sum is σ = 215800981005148. Its totient is φ = 208839659037120.

The previous prime is 212320320021059. The next prime is 212320320021157. The reversal of 212320320021133 is 331120023023212.

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 48596472227689 + 163723847793444 = 6971117^2 + 12795462^2 .

It is a cyclic number.

It is not a de Polignac number, because 212320320021133 - 2³³ = 212311730086541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212320320021098 and 212320320021107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320320021233) 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, 1740330491916 + ... + 1740330492037.

It is an arithmetic number, because the mean of its divisors is an integer number (53950245251287).

Almost surely, 2^{212320320021133} is an apocalyptic number.

It is an amenable number.

212320320021133 is a deficient number, since it is larger than the sum of its proper divisors (3480660984015).

212320320021133 is an equidigital number, since it uses as much as digits as its factorization.

212320320021133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480660984014.

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

Adding to 212320320021133 its reverse (331120023023212), we get a palindrome (543440343044345).

The spelling of 212320320021133 in words is "two hundred twelve trillion, three hundred twenty billion, three hundred twenty million, twenty-one thousand, one hundred thirty-three".