213044345233 has 4 divisors (see below), whose sum is σ = 213181001280. Its totient is φ = 212907689188.

The previous prime is 213044345167. The next prime is 213044345273. The reversal of 213044345233 is 332543440312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213044345233 - 2¹³ = 213044337041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213044345273) 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, 68325685 + ... + 68328802.

It is an arithmetic number, because the mean of its divisors is an integer number (53295250320).

Almost surely, 2^213044345233 is an apocalyptic number.

It is an amenable number.

213044345233 is a deficient number, since it is larger than the sum of its proper divisors (136656047).

213044345233 is a wasteful number, since it uses less digits than its factorization.

213044345233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136656046.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 213044345233 its reverse (332543440312), we get a palindrome (545587785545).

The spelling of 213044345233 in words is "two hundred thirteen billion, forty-four million, three hundred forty-five thousand, two hundred thirty-three".