111234304123 has 2 divisors, whose sum is σ = 111234304124. Its totient is φ = 111234304122.

The previous prime is 111234304109. The next prime is 111234304199. The reversal of 111234304123 is 321403432111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111234304123 is a prime.

It is not a weakly prime, because it can be changed into another prime (111234304523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55617152061 + 55617152062.

It is an arithmetic number, because the mean of its divisors is an integer number (55617152062).

Almost surely, 2^111234304123 is an apocalyptic number.

111234304123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111234304123 is an equidigital number, since it uses as much as digits as its factorization.

111234304123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 111234304123 its reverse (321403432111), we get a palindrome (432637736234).

The spelling of 111234304123 in words is "one hundred eleven billion, two hundred thirty-four million, three hundred four thousand, one hundred twenty-three".