13123123 has 8 divisors (see below), whose sum is σ = 14515088. Its totient is φ = 11785824.

The previous prime is 13123111. The next prime is 13123147. The reversal of 13123123 is 32132131.

13123123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13123123 - 2¹⁷ = 12992051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123097 and 13123106.

It is not an unprimeable number, because it can be changed into a prime (13123183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13161 + ... + 14122.

It is an arithmetic number, because the mean of its divisors is an integer number (1814386).

Almost surely, 2^13123123 is an apocalyptic number.

13123123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13123123 is a deficient number, since it is larger than the sum of its proper divisors (1391965).

13123123 is a wasteful number, since it uses less digits than its factorization.

13123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27333.

The product of its digits is 108, while the sum is 16.

The square root of 13123123 is about 3622.5851266740. The cubic root of 13123123 is about 235.8734538936.

Adding to 13123123 its reverse (32132131), we get a palindrome (45255254).

The spelling of 13123123 in words is "thirteen million, one hundred twenty-three thousand, one hundred twenty-three".