213120311213 has 8 divisors (see below), whose sum is σ = 213415721760. Its totient is φ = 212825012400.

The previous prime is 213120311179. The next prime is 213120311231. The reversal of 213120311213 is 312113021312.

It is a happy number.

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 213120311213 - 2¹⁶ = 213120245677 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 (213120311233) 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, 4233038 + ... + 4283088.

It is an arithmetic number, because the mean of its divisors is an integer number (26676965220).

Almost surely, 2^213120311213 is an apocalyptic number.

It is an amenable number.

213120311213 is a deficient number, since it is larger than the sum of its proper divisors (295410547).

213120311213 is an equidigital number, since it uses as much as digits as its factorization.

213120311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55867.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213120311213 its reverse (312113021312), we get a palindrome (525233332525).

The spelling of 213120311213 in words is "two hundred thirteen billion, one hundred twenty million, three hundred eleven thousand, two hundred thirteen".