213212323013 has 4 divisors (see below), whose sum is σ = 213397243788. Its totient is φ = 213027402240.

The previous prime is 213212322997. The next prime is 213212323039. The reversal of 213212323013 is 310323212312.

213212323013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175040150884 + 38172172129 = 418378^2 + 195377^2 .

It is a cyclic number.

It is not a de Polignac number, because 213212323013 - 2⁴ = 213212322997 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 213212323013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213212322013) 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 3 ways as a sum of consecutive naturals, for example, 92458658 + ... + 92460963.

It is an arithmetic number, because the mean of its divisors is an integer number (53349310947).

Almost surely, 2^213212323013 is an apocalyptic number.

It is an amenable number.

213212323013 is a deficient number, since it is larger than the sum of its proper divisors (184920775).

213212323013 is a wasteful number, since it uses less digits than its factorization.

213212323013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184920774.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213212323013 its reverse (310323212312), we get a palindrome (523535535325).

The spelling of 213212323013 in words is "two hundred thirteen billion, two hundred twelve million, three hundred twenty-three thousand, thirteen".