206163323 has 4 divisors (see below), whose sum is σ = 206677848. Its totient is φ = 205648800.

The previous prime is 206163317. The next prime is 206163341. The reversal of 206163323 is 323361602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323361602 = 2 ⋅161680801.

It is a cyclic number.

It is not a de Polignac number, because 206163323 - 2²⁴ = 189386107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206163292 and 206163301.

It is not an unprimeable number, because it can be changed into a prime (206163343) 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, 256661 + ... + 257462.

It is an arithmetic number, because the mean of its divisors is an integer number (51669462).

Almost surely, 2^206163323 is an apocalyptic number.

206163323 is a deficient number, since it is larger than the sum of its proper divisors (514525).

206163323 is an equidigital number, since it uses as much as digits as its factorization.

206163323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514524.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 206163323 is about 14358.3885934321. The cubic root of 206163323 is about 590.7500973804.

The spelling of 206163323 in words is "two hundred six million, one hundred sixty-three thousand, three hundred twenty-three".