111223213202123 has 8 divisors (see below), whose sum is σ = 121334502063600. Its totient is φ = 101111938950880.

The previous prime is 111223213202117. The next prime is 111223213202149. The reversal of 111223213202123 is 321202312322111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-111223213202123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111223213202092 and 111223213202101.

It is not an unprimeable number, because it can be changed into a prime (111223213207123) 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, 17683961 + ... + 23133717.

It is an arithmetic number, because the mean of its divisors is an integer number (15166812757950).

Almost surely, 2^{111223213202123} is an apocalyptic number.

111223213202123 is a deficient number, since it is larger than the sum of its proper divisors (10111288861477).

111223213202123 is a wasteful number, since it uses less digits than its factorization.

111223213202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7305117.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 111223213202123 its reverse (321202312322111), we get a palindrome (432425525524234).

The spelling of 111223213202123 in words is "one hundred eleven trillion, two hundred twenty-three billion, two hundred thirteen million, two hundred two thousand, one hundred twenty-three".