206231213203 has 4 divisors (see below), whose sum is σ = 209309291080. Its totient is φ = 203153135328.

The previous prime is 206231213189. The next prime is 206231213207. The reversal of 206231213203 is 302312132602.

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 206231213203 - 2⁵ = 206231213171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206231213207) 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, 1539038838 + ... + 1539038971.

It is an arithmetic number, because the mean of its divisors is an integer number (52327322770).

Almost surely, 2^206231213203 is an apocalyptic number.

206231213203 is a deficient number, since it is larger than the sum of its proper divisors (3078077877).

206231213203 is an equidigital number, since it uses as much as digits as its factorization.

206231213203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078077876.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 206231213203 its reverse (302312132602), we get a palindrome (508543345805).

The spelling of 206231213203 in words is "two hundred six billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred three".