12102303123 has 32 divisors (see below), whose sum is σ = 18278265600. Its totient is φ = 7912611648.

The previous prime is 12102303121. The next prime is 12102303133. The reversal of 12102303123 is 32130320121.

12102303123 is a `hidden beast` number, since 121 + 0 + 230 + 312 + 3 = 666.

It is not a de Polignac number, because 12102303123 - 2¹ = 12102303121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12102303096 and 12102303105.

It is not an unprimeable number, because it can be changed into a prime (12102303121) 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 31 ways as a sum of consecutive naturals, for example, 287308 + ... + 326726.

It is an arithmetic number, because the mean of its divisors is an integer number (571195800).

Almost surely, 2^12102303123 is an apocalyptic number.

12102303123 is a deficient number, since it is larger than the sum of its proper divisors (6175962477).

12102303123 is a wasteful number, since it uses less digits than its factorization.

12102303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39648 (or 39642 counting only the distinct ones).

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

Adding to 12102303123 its reverse (32130320121), we get a palindrome (44232623244).

The spelling of 12102303123 in words is "twelve billion, one hundred two million, three hundred three thousand, one hundred twenty-three".