123633201 has 4 divisors (see below), whose sum is σ = 164844272. Its totient is φ = 82422132.

The previous prime is 123633179. The next prime is 123633203. The reversal of 123633201 is 102336321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102336321 = 3 ⋅34112107.

It is not a de Polignac number, because 123633201 - 2¹⁹ = 123108913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123633203) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 20605531 + ... + 20605536.

It is an arithmetic number, because the mean of its divisors is an integer number (41211068).

Almost surely, 2^123633201 is an apocalyptic number.

It is an amenable number.

123633201 is a deficient number, since it is larger than the sum of its proper divisors (41211071).

123633201 is an equidigital number, since it uses as much as digits as its factorization.

123633201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41211070.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 123633201 is about 11119.0467666972. The cubic root of 123633201 is about 498.1709184135.

Adding to 123633201 its reverse (102336321), we get a palindrome (225969522).

The spelling of 123633201 in words is "one hundred twenty-three million, six hundred thirty-three thousand, two hundred one".