206213351143 has 2 divisors, whose sum is σ = 206213351144. Its totient is φ = 206213351142.

The previous prime is 206213351117. The next prime is 206213351161. The reversal of 206213351143 is 341153312602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206213351143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206213351173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103106675571 + 103106675572.

It is an arithmetic number, because the mean of its divisors is an integer number (103106675572).

Almost surely, 2^206213351143 is an apocalyptic number.

206213351143 is a deficient number, since it is larger than the sum of its proper divisors (1).

206213351143 is an equidigital number, since it uses as much as digits as its factorization.

206213351143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 206213351143 its reverse (341153312602), we get a palindrome (547366663745).

The spelling of 206213351143 in words is "two hundred six billion, two hundred thirteen million, three hundred fifty-one thousand, one hundred forty-three".