213212233033133 has 4 divisors (see below), whose sum is σ = 213212327459040. Its totient is φ = 213212138607228.

The previous prime is 213212233033103. The next prime is 213212233033139. The reversal of 213212233033133 is 331330332212312.

It is a happy number.

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 213212233033133 - 2²⁸ = 213211964597677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213212233033133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213212233033139) 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, 43740863 + ... + 48370316.

It is an arithmetic number, because the mean of its divisors is an integer number (53303081864760).

Almost surely, 2^{213212233033133} is an apocalyptic number.

It is an amenable number.

213212233033133 is a deficient number, since it is larger than the sum of its proper divisors (94425907).

213212233033133 is an equidigital number, since it uses as much as digits as its factorization.

213212233033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94425906.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 213212233033133 its reverse (331330332212312), we get a palindrome (544542565245445).

The spelling of 213212233033133 in words is "two hundred thirteen trillion, two hundred twelve billion, two hundred thirty-three million, thirty-three thousand, one hundred thirty-three".