123320206 has 4 divisors (see below), whose sum is σ = 184980312. Its totient is φ = 61660102.

The previous prime is 123320191. The next prime is 123320213. The reversal of 123320206 is 602023321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30830050 + ... + 30830053.

It is an arithmetic number, because the mean of its divisors is an integer number (46245078).

Almost surely, 2^123320206 is an apocalyptic number.

123320206 is a deficient number, since it is larger than the sum of its proper divisors (61660106).

123320206 is an equidigital number, since it uses as much as digits as its factorization.

123320206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61660105.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 123320206 is about 11104.9631246574. The cubic root of 123320206 is about 497.7501663479.

Adding to 123320206 its reverse (602023321), we get a palindrome (725343527).

The spelling of 123320206 in words is "one hundred twenty-three million, three hundred twenty thousand, two hundred six".