213133020443201 has 4 divisors (see below), whose sum is σ = 213137293665492. Its totient is φ = 213128747220912.

The previous prime is 213133020443197. The next prime is 213133020443221. The reversal of 213133020443201 is 102344020331312.

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 112776222748225 + 100356797694976 = 10619615^2 + 10017824^2 .

It is a cyclic number.

It is not a de Polignac number, because 213133020443201 - 2² = 213133020443197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213133020443221) 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, 2136536330 + ... + 2136636083.

It is an arithmetic number, because the mean of its divisors is an integer number (53284323416373).

Almost surely, 2^{213133020443201} is an apocalyptic number.

It is an amenable number.

213133020443201 is a deficient number, since it is larger than the sum of its proper divisors (4273222291).

213133020443201 is an equidigital number, since it uses as much as digits as its factorization.

213133020443201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273222290.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 213133020443201 its reverse (102344020331312), we get a palindrome (315477040774513).

The spelling of 213133020443201 in words is "two hundred thirteen trillion, one hundred thirty-three billion, twenty million, four hundred forty-three thousand, two hundred one".