111101342123 has 2 divisors, whose sum is σ = 111101342124. Its totient is φ = 111101342122.

The previous prime is 111101342119. The next prime is 111101342147. The reversal of 111101342123 is 321243101111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111101342123 - 2² = 111101342119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111101342095 and 111101342104.

It is not a weakly prime, because it can be changed into another prime (111101341123) 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 as a sum of consecutive naturals, namely, 55550671061 + 55550671062.

It is an arithmetic number, because the mean of its divisors is an integer number (55550671062).

Almost surely, 2^111101342123 is an apocalyptic number.

111101342123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101342123 is an equidigital number, since it uses as much as digits as its factorization.

111101342123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 111101342123 its reverse (321243101111), we get a palindrome (432344443234).

The spelling of 111101342123 in words is "one hundred eleven billion, one hundred one million, three hundred forty-two thousand, one hundred twenty-three".