13123530004123 has 16 divisors (see below), whose sum is σ = 16362319885056. Its totient is φ = 10225804623840.

The previous prime is 13123530004093. The next prime is 13123530004133. The reversal of 13123530004123 is 32140003532131.

It is a cyclic number.

It is not a de Polignac number, because 13123530004123 - 2³³ = 13114940069531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123530004091 and 13123530004100.

It is not an unprimeable number, because it can be changed into a prime (13123530004133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217836 + ... + 5127817.

It is an arithmetic number, because the mean of its divisors is an integer number (1022644992816).

Almost surely, 2^{13123530004123} is an apocalyptic number.

13123530004123 is a deficient number, since it is larger than the sum of its proper divisors (3238789880933).

13123530004123 is a wasteful number, since it uses less digits than its factorization.

13123530004123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377554.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 13123530004123 its reverse (32140003532131), we get a palindrome (45263533536254).

The spelling of 13123530004123 in words is "thirteen trillion, one hundred twenty-three billion, five hundred thirty million, four thousand, one hundred twenty-three".