13123030123 has 4 divisors (see below), whose sum is σ = 14997748720. Its totient is φ = 11248311528.

The previous prime is 13123030079. The next prime is 13123030147. The reversal of 13123030123 is 32103032131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32103032131 = 8669 ⋅3703199.

It is a cyclic number.

It is not a de Polignac number, because 13123030123 - 2²⁵ = 13089475691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13123030123.

It is not an unprimeable number, because it can be changed into a prime (13123030163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937359288 + ... + 937359301.

It is an arithmetic number, because the mean of its divisors is an integer number (3749437180).

Almost surely, 2^13123030123 is an apocalyptic number.

13123030123 is a deficient number, since it is larger than the sum of its proper divisors (1874718597).

13123030123 is an equidigital number, since it uses as much as digits as its factorization.

13123030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874718596.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13123030123 its reverse (32103032131), we get a palindrome (45226062254).

The spelling of 13123030123 in words is "thirteen billion, one hundred twenty-three million, thirty thousand, one hundred twenty-three".