12011023103123 has 32 divisors (see below), whose sum is σ = 13615141478400. Its totient is φ = 10500845920000.

The previous prime is 12011023103099. The next prime is 12011023103143. The reversal of 12011023103123 is 32130132011021.

It is a happy number.

12011023103123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12011023103123 - 2⁶ = 12011023103059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12011023103095 and 12011023103104.

It is not an unprimeable number, because it can be changed into a prime (12011023103143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9759278 + ... + 10920876.

It is an arithmetic number, because the mean of its divisors is an integer number (425473171200).

Almost surely, 2^{12011023103123} is an apocalyptic number.

12011023103123 is a deficient number, since it is larger than the sum of its proper divisors (1604118375277).

12011023103123 is a wasteful number, since it uses less digits than its factorization.

12011023103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161979.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12011023103123 its reverse (32130132011021), we get a palindrome (44141155114144).

The spelling of 12011023103123 in words is "twelve trillion, eleven billion, twenty-three million, one hundred three thousand, one hundred twenty-three".