123300203121 has 12 divisors (see below), whose sum is σ = 178239559680. Its totient is φ = 82135858680.

The previous prime is 123300203111. The next prime is 123300203141. The reversal of 123300203121 is 121302003321.

123300203121 is a `hidden beast` number, since 1 + 2 + 330 + 0 + 20 + 312 + 1 = 666.

It is not a de Polignac number, because 123300203121 - 2¹³ = 123300194929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123300203094 and 123300203103.

It is not an unprimeable number, because it can be changed into a prime (123300203111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5344245 + ... + 5367266.

It is an arithmetic number, because the mean of its divisors is an integer number (14853296640).

Almost surely, 2^123300203121 is an apocalyptic number.

It is an amenable number.

123300203121 is a deficient number, since it is larger than the sum of its proper divisors (54939356559).

123300203121 is a wasteful number, since it uses less digits than its factorization.

123300203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712796 (or 10712793 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123300203121 its reverse (121302003321), we get a palindrome (244602206442).

The spelling of 123300203121 in words is "one hundred twenty-three billion, three hundred million, two hundred three thousand, one hundred twenty-one".