111123313123 has 8 divisors (see below), whose sum is σ = 112253987376. Its totient is φ = 109993236000.

The previous prime is 111123313111. The next prime is 111123313127. The reversal of 111123313123 is 321313321111.

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 111123313123 - 2³³ = 102533378531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111123313094 and 111123313103.

It is not an unprimeable number, because it can be changed into a prime (111123313127) 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, 229668 + ... + 524398.

It is an arithmetic number, because the mean of its divisors is an integer number (14031748422).

Almost surely, 2^111123313123 is an apocalyptic number.

111123313123 is a deficient number, since it is larger than the sum of its proper divisors (1130674253).

111123313123 is a wasteful number, since it uses less digits than its factorization.

111123313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298565.

The product of its digits is 324, while the sum is 22.

Adding to 111123313123 its reverse (321313321111), we get a palindrome (432436634234).

The spelling of 111123313123 in words is "one hundred eleven billion, one hundred twenty-three million, three hundred thirteen thousand, one hundred twenty-three".