213201232111 has 4 divisors (see below), whose sum is σ = 243658550992. Its totient is φ = 182743913232.

The previous prime is 213201232103. The next prime is 213201232141. The reversal of 213201232111 is 111232102312.

213201232111 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 is a cyclic number.

It is not a de Polignac number, because 213201232111 - 2³ = 213201232103 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 (213201232141) 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, 15228659430 + ... + 15228659443.

It is an arithmetic number, because the mean of its divisors is an integer number (60914637748).

Almost surely, 2^213201232111 is an apocalyptic number.

213201232111 is a deficient number, since it is larger than the sum of its proper divisors (30457318881).

213201232111 is an equidigital number, since it uses as much as digits as its factorization.

213201232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30457318880.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213201232111 its reverse (111232102312), we get a palindrome (324433334423).

The spelling of 213201232111 in words is "two hundred thirteen billion, two hundred one million, two hundred thirty-two thousand, one hundred eleven".