213111330203 has 4 divisors (see below), whose sum is σ = 213182394000. Its totient is φ = 213040266408.

The previous prime is 213111330199. The next prime is 213111330227. The reversal of 213111330203 is 302033111312.

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 213111330203 - 2² = 213111330199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213111330233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35527400 + ... + 35533397.

It is an arithmetic number, because the mean of its divisors is an integer number (53295598500).

Almost surely, 2^213111330203 is an apocalyptic number.

213111330203 is a deficient number, since it is larger than the sum of its proper divisors (71063797).

213111330203 is an equidigital number, since it uses as much as digits as its factorization.

213111330203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71063796.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 213111330203 its reverse (302033111312), we get a palindrome (515144441515).

The spelling of 213111330203 in words is "two hundred thirteen billion, one hundred eleven million, three hundred thirty thousand, two hundred three".