111102221123123 has 2 divisors, whose sum is σ = 111102221123124. Its totient is φ = 111102221123122.

The previous prime is 111102221123087. The next prime is 111102221123171. The reversal of 111102221123123 is 321321122201111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111102221123123 - 2¹² = 111102221119027 is a prime.

It is not a weakly prime, because it can be changed into another prime (111102221126123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551110561561 + 55551110561562.

It is an arithmetic number, because the mean of its divisors is an integer number (55551110561562).

Almost surely, 2^{111102221123123} is an apocalyptic number.

111102221123123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111102221123123 is an equidigital number, since it uses as much as digits as its factorization.

111102221123123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 111102221123123 its reverse (321321122201111), we get a palindrome (432423343324234).

The spelling of 111102221123123 in words is "one hundred eleven trillion, one hundred two billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred twenty-three".