213312233213 has 4 divisors (see below), whose sum is σ = 213383364000. Its totient is φ = 213241102428.

The previous prime is 213312233171. The next prime is 213312233219. The reversal of 213312233213 is 312332213312.

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 a de Polignac number, because none of the positive numbers 2^k-213312233213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213312233219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35560895 + ... + 35566892.

It is an arithmetic number, because the mean of its divisors is an integer number (53345841000).

Almost surely, 2^213312233213 is an apocalyptic number.

It is an amenable number.

213312233213 is a deficient number, since it is larger than the sum of its proper divisors (71130787).

213312233213 is an equidigital number, since it uses as much as digits as its factorization.

213312233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71130786.

The product of its digits is 3888, while the sum is 26.

Adding to 213312233213 its reverse (312332213312), we get a palindrome (525644446525).

The spelling of 213312233213 in words is "two hundred thirteen billion, three hundred twelve million, two hundred thirty-three thousand, two hundred thirteen".