111321031223 has 8 divisors (see below), whose sum is σ = 114456987456. Its totient is φ = 108205113600.

The previous prime is 111321031219. The next prime is 111321031259. The reversal of 111321031223 is 322130123111.

It is a happy number.

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 111321031223 - 2² = 111321031219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111321031195 and 111321031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321039223) 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 7 ways as a sum of consecutive naturals, for example, 4998386 + ... + 5020607.

It is an arithmetic number, because the mean of its divisors is an integer number (14307123432).

Almost surely, 2^111321031223 is an apocalyptic number.

111321031223 is a deficient number, since it is larger than the sum of its proper divisors (3135956233).

111321031223 is a wasteful number, since it uses less digits than its factorization.

111321031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10019305.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111321031223 its reverse (322130123111), we get a palindrome (433451154334).

The spelling of 111321031223 in words is "one hundred eleven billion, three hundred twenty-one million, thirty-one thousand, two hundred twenty-three".