206611142203 has 4 divisors (see below), whose sum is σ = 211007124000. Its totient is φ = 202215160408.

The previous prime is 206611142201. The next prime is 206611142249. The reversal of 206611142203 is 302241116602.

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 206611142203 - 2¹ = 206611142201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206611142201) 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, 2197990828 + ... + 2197990921.

It is an arithmetic number, because the mean of its divisors is an integer number (52751781000).

Almost surely, 2^206611142203 is an apocalyptic number.

206611142203 is a deficient number, since it is larger than the sum of its proper divisors (4395981797).

206611142203 is an equidigital number, since it uses as much as digits as its factorization.

206611142203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395981796.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 206611142203 its reverse (302241116602), we get a palindrome (508852258805).

The spelling of 206611142203 in words is "two hundred six billion, six hundred eleven million, one hundred forty-two thousand, two hundred three".