206120203 has 8 divisors (see below), whose sum is σ = 207825296. Its totient is φ = 204422400.

The previous prime is 206120179. The next prime is 206120219. The reversal of 206120203 is 302021602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206120203 is a prime.

It is a super-2 number, since 2×206120203² = 84971076169522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206120293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64483 + ... + 67603.

It is an arithmetic number, because the mean of its divisors is an integer number (25978162).

Almost surely, 2^206120203 is an apocalyptic number.

206120203 is a deficient number, since it is larger than the sum of its proper divisors (1705093).

206120203 is a wasteful number, since it uses less digits than its factorization.

206120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 206120203 is about 14356.8869536540. The cubic root of 206120203 is about 590.7089084823.

Adding to 206120203 its reverse (302021602), we get a palindrome (508141805).

It can be divided in two parts, 206 and 120203, that added together give a square (120409 = 347²).

The spelling of 206120203 in words is "two hundred six million, one hundred twenty thousand, two hundred three".