13011233123 has 4 divisors (see below), whose sum is σ = 14869980720. Its totient is φ = 11152485528.

The previous prime is 13011233077. The next prime is 13011233143. The reversal of 13011233123 is 32133211031.

13011233123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32133211031 = 37 ⋅868465163.

It is a cyclic number.

It is not a de Polignac number, because 13011233123 - 2⁸ = 13011232867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13011233095 and 13011233104.

It is not an unprimeable number, because it can be changed into a prime (13011233143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929373788 + ... + 929373801.

It is an arithmetic number, because the mean of its divisors is an integer number (3717495180).

Almost surely, 2^13011233123 is an apocalyptic number.

13011233123 is a deficient number, since it is larger than the sum of its proper divisors (1858747597).

13011233123 is an equidigital number, since it uses as much as digits as its factorization.

13011233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858747596.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13011233123 its reverse (32133211031), we get a palindrome (45144444154).

The spelling of 13011233123 in words is "thirteen billion, eleven million, two hundred thirty-three thousand, one hundred twenty-three".