123221203103 has 16 divisors (see below), whose sum is σ = 126883441440. Its totient is φ = 119620406400.

The previous prime is 123221203081. The next prime is 123221203117. The reversal of 123221203103 is 301302122321.

It is a cyclic number.

It is not a de Polignac number, because 123221203103 - 2²⁸ = 122952767647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123221203163) 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 15 ways as a sum of consecutive naturals, for example, 1720673 + ... + 1790853.

It is an arithmetic number, because the mean of its divisors is an integer number (7930215090).

Almost surely, 2^123221203103 is an apocalyptic number.

123221203103 is a deficient number, since it is larger than the sum of its proper divisors (3662238337).

123221203103 is a wasteful number, since it uses less digits than its factorization.

123221203103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70618.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123221203103 its reverse (301302122321), we get a palindrome (424523325424).

The spelling of 123221203103 in words is "one hundred twenty-three billion, two hundred twenty-one million, two hundred three thousand, one hundred three".