111305353123 has 4 divisors (see below), whose sum is σ = 111407751040. Its totient is φ = 111202955208.

The previous prime is 111305353111. The next prime is 111305353127. The reversal of 111305353123 is 321353503111.

It is a happy number.

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 111305353123 - 2²⁹ = 110768482211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111305353091 and 111305353100.

It is not an unprimeable number, because it can be changed into a prime (111305353127) 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, 51197328 + ... + 51199501.

It is an arithmetic number, because the mean of its divisors is an integer number (27851937760).

Almost surely, 2^111305353123 is an apocalyptic number.

111305353123 is a deficient number, since it is larger than the sum of its proper divisors (102397917).

111305353123 is a wasteful number, since it uses less digits than its factorization.

111305353123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102397916.

The product of its (nonzero) digits is 4050, while the sum is 28.

Adding to 111305353123 its reverse (321353503111), we get a palindrome (432658856234).

The spelling of 111305353123 in words is "one hundred eleven billion, three hundred five million, three hundred fifty-three thousand, one hundred twenty-three".