213111312113 has 8 divisors (see below), whose sum is σ = 243559360128. Its totient is φ = 182664157824.

The previous prime is 213111312097. The next prime is 213111312119. The reversal of 213111312113 is 311213111312.

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 213111312113 - 2⁴ = 213111312097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213111312119) 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, 405620 + ... + 768602.

It is an arithmetic number, because the mean of its divisors is an integer number (30444920016).

Almost surely, 2^213111312113 is an apocalyptic number.

It is an amenable number.

213111312113 is a deficient number, since it is larger than the sum of its proper divisors (30448048015).

213111312113 is an equidigital number, since it uses as much as digits as its factorization.

213111312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446863.

The product of its digits is 108, while the sum is 20.

Adding to 213111312113 its reverse (311213111312), we get a palindrome (524324423425).

The spelling of 213111312113 in words is "two hundred thirteen billion, one hundred eleven million, three hundred twelve thousand, one hundred thirteen".