13111144142123 has 4 divisors (see below), whose sum is σ = 13111158727368. Its totient is φ = 13111129556880.

The previous prime is 13111144142119. The next prime is 13111144142177. The reversal of 13111144142123 is 32124144111131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13111144142123 - 2² = 13111144142119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111144132123) 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, 5848961 + ... + 7773842.

It is an arithmetic number, because the mean of its divisors is an integer number (3277789681842).

Almost surely, 2^{13111144142123} is an apocalyptic number.

13111144142123 is a deficient number, since it is larger than the sum of its proper divisors (14585245).

13111144142123 is an equidigital number, since it uses as much as digits as its factorization.

13111144142123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14585244.

The product of its digits is 2304, while the sum is 29.

Adding to 13111144142123 its reverse (32124144111131), we get a palindrome (45235288253254).

The spelling of 13111144142123 in words is "thirteen trillion, one hundred eleven billion, one hundred forty-four million, one hundred forty-two thousand, one hundred twenty-three".