123209203 has 8 divisors (see below), whose sum is σ = 134862896. Its totient is φ = 111866400.

The previous prime is 123209189. The next prime is 123209213. The reversal of 123209203 is 302902321.

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

It is a cyclic number.

It is not a de Polignac number, because 123209203 - 2¹³ = 123201011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123209213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76893 + ... + 78478.

It is an arithmetic number, because the mean of its divisors is an integer number (16857862).

Almost surely, 2^123209203 is an apocalyptic number.

123209203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123209203 is a deficient number, since it is larger than the sum of its proper divisors (11653693).

123209203 is a wasteful number, since it uses less digits than its factorization.

123209203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155445.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 123209203 is about 11099.9640990410. The cubic root of 123209203 is about 497.6007765343.

The spelling of 123209203 in words is "one hundred twenty-three million, two hundred nine thousand, two hundred three".