123128301 has 8 divisors (see below), whose sum is σ = 164826144. Its totient is φ = 81758000.

The previous prime is 123128293. The next prime is 123128329. The reversal of 123128301 is 103821321.

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 123128301 - 2³ = 123128293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123128351) 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 7 ways as a sum of consecutive naturals, for example, 81006 + ... + 82511.

It is an arithmetic number, because the mean of its divisors is an integer number (20603268).

Almost surely, 2^123128301 is an apocalyptic number.

It is an amenable number.

123128301 is a deficient number, since it is larger than the sum of its proper divisors (41697843).

123128301 is a wasteful number, since it uses less digits than its factorization.

123128301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163771.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 123128301 is about 11096.3192545997. The cubic root of 123128301 is about 497.4918406446.

Adding to 123128301 its reverse (103821321), we get a palindrome (226949622).

The spelling of 123128301 in words is "one hundred twenty-three million, one hundred twenty-eight thousand, three hundred one".