111121171223 has 8 divisors (see below), whose sum is σ = 111694931568. Its totient is φ = 110547509184.

The previous prime is 111121171219. The next prime is 111121171253. The reversal of 111121171223 is 322171121111.

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 111121171223 - 2² = 111121171219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121171253) 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, 3639740 + ... + 3670142.

It is an arithmetic number, because the mean of its divisors is an integer number (13961866446).

Almost surely, 2^111121171223 is an apocalyptic number.

111121171223 is a deficient number, since it is larger than the sum of its proper divisors (573760345).

111121171223 is a wasteful number, since it uses less digits than its factorization.

111121171223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49153.

The product of its digits is 168, while the sum is 23.

Adding to 111121171223 its reverse (322171121111), we get a palindrome (433292292334).

The spelling of 111121171223 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred seventy-one thousand, two hundred twenty-three".