12123102303123 has 64 divisors (see below), whose sum is σ = 18686576240640. Its totient is φ = 6847827609600.

The previous prime is 12123102303097. The next prime is 12123102303149. The reversal of 12123102303123 is 32130320132121.

It is an interprime number because it is at equal distance from previous prime (12123102303097) and next prime (12123102303149).

It is not a de Polignac number, because 12123102303123 - 2¹⁰ = 12123102302099 is a prime.

It is a super-3 number, since 3×12123102303123³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12123102303093 and 12123102303102.

It is not an unprimeable number, because it can be changed into a prime (12123102503123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1937523211 + ... + 1937529467.

It is an arithmetic number, because the mean of its divisors is an integer number (291977753760).

Almost surely, 2^{12123102303123} is an apocalyptic number.

12123102303123 is a deficient number, since it is larger than the sum of its proper divisors (6563473937517).

12123102303123 is a wasteful number, since it uses less digits than its factorization.

12123102303123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12123102303123 its reverse (32130320132121), we get a palindrome (44253422435244).

The spelling of 12123102303123 in words is "twelve trillion, one hundred twenty-three billion, one hundred two million, three hundred three thousand, one hundred twenty-three".