213013133213 has 8 divisors (see below), whose sum is σ = 217317483576. Its totient is φ = 208719347200.

The previous prime is 213013133209. The next prime is 213013133227. The reversal of 213013133213 is 312331310312.

It can be written as a sum of positive squares in 4 ways, for example, as 33937745284 + 179075387929 = 184222^2 + 423173^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 213013133213 - 2² = 213013133209 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 (213013133243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2600348 + ... + 2681013.

It is an arithmetic number, because the mean of its divisors is an integer number (27164685447).

Almost surely, 2^213013133213 is an apocalyptic number.

It is an amenable number.

213013133213 is a deficient number, since it is larger than the sum of its proper divisors (4304350363).

213013133213 is an equidigital number, since it uses as much as digits as its factorization.

213013133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282175.

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

Adding to 213013133213 its reverse (312331310312), we get a palindrome (525344443525).

The spelling of 213013133213 in words is "two hundred thirteen billion, thirteen million, one hundred thirty-three thousand, two hundred thirteen".