213231311033 has 8 divisors (see below), whose sum is σ = 229659448200. Its totient is φ = 196806849408.

The previous prime is 213231311011. The next prime is 213231311047. The reversal of 213231311033 is 330113132312.

213231311033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8210715769 + 205020595264 = 90613^2 + 452792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213231311033 - 2¹⁰ = 213231310009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213231311053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797798 + ... + 1030991.

It is an arithmetic number, because the mean of its divisors is an integer number (28707431025).

Almost surely, 2^213231311033 is an apocalyptic number.

It is an amenable number.

213231311033 is a deficient number, since it is larger than the sum of its proper divisors (16428137167).

213231311033 is a wasteful number, since it uses less digits than its factorization.

213231311033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837771.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213231311033 its reverse (330113132312), we get a palindrome (543344443345).

The spelling of 213231311033 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred eleven thousand, thirty-three".