123223201 has 4 divisors (see below), whose sum is σ = 123644052. Its totient is φ = 122802352.

The previous prime is 123223193. The next prime is 123223207. The reversal of 123223201 is 102322321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102322321 = 89 ⋅1149689.

It can be written as a sum of positive squares in 2 ways, for example, as 49280400 + 73942801 = 7020^2 + 8599^2 .

It is a cyclic number.

It is not a de Polignac number, because 123223201 - 2³ = 123223193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123223207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209986 + ... + 210571.

It is an arithmetic number, because the mean of its divisors is an integer number (30911013).

Almost surely, 2^123223201 is an apocalyptic number.

It is an amenable number.

123223201 is a deficient number, since it is larger than the sum of its proper divisors (420851).

123223201 is an equidigital number, since it uses as much as digits as its factorization.

123223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420850.

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

The square root of 123223201 is about 11100.5946237127. The cubic root of 123223201 is about 497.6196202346.

Adding to 123223201 its reverse (102322321), we get a palindrome (225545522).

It can be divided in two parts, 12322320 and 1, that added together give a palindrome (12322321).

The spelling of 123223201 in words is "one hundred twenty-three million, two hundred twenty-three thousand, two hundred one".