213204240444213 has 12 divisors (see below), whose sum is σ = 321351318930720. Its totient is φ = 135956327239656.

The previous prime is 213204240444193. The next prime is 213204240444227. The reversal of 213204240444213 is 312444042402312.

213204240444213 is a `hidden beast` number, since 2 + 1 + 3 + 204 + 2 + 4 + 0 + 4 + 442 + 1 + 3 = 666.

It is not a de Polignac number, because 213204240444213 - 2¹² = 213204240440117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213204240944213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 514986087823 + ... + 514986088236.

It is an arithmetic number, because the mean of its divisors is an integer number (26779276577560).

Almost surely, 2^{213204240444213} is an apocalyptic number.

213204240444213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213204240444213 is a deficient number, since it is larger than the sum of its proper divisors (108147078486507).

213204240444213 is a wasteful number, since it uses less digits than its factorization.

213204240444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029972176088 (or 1029972176085 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 213204240444213 its reverse (312444042402312), we get a palindrome (525648282846525).

The spelling of 213204240444213 in words is "two hundred thirteen trillion, two hundred four billion, two hundred forty million, four hundred forty-four thousand, two hundred thirteen".