111112220110123 has 16 divisors (see below), whose sum is σ = 112354640520640. Its totient is φ = 109871808915456.

The previous prime is 111112220110103. The next prime is 111112220110153. The reversal of 111112220110123 is 321011022211111.

It is a cyclic number.

It is not a de Polignac number, because 111112220110123 - 2¹³ = 111112220101931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111112220110123.

It is not an unprimeable number, because it can be changed into a prime (111112220110103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716696911 + ... + 716851927.

It is an arithmetic number, because the mean of its divisors is an integer number (7022165032540).

Almost surely, 2^{111112220110123} is an apocalyptic number.

111112220110123 is a deficient number, since it is larger than the sum of its proper divisors (1242420410517).

111112220110123 is a wasteful number, since it uses less digits than its factorization.

111112220110123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161446.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 111112220110123 its reverse (321011022211111), we get a palindrome (432123242321234).

The spelling of 111112220110123 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twenty million, one hundred ten thousand, one hundred twenty-three".