111104112441121 has 2 divisors, whose sum is σ = 111104112441122. Its totient is φ = 111104112441120.

The previous prime is 111104112441103. The next prime is 111104112441211. The reversal of 111104112441121 is 121144211401111.

Together with next prime (111104112441211) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104766708984721 + 6337403456400 = 10235561^2 + 2517420^2 .

It is a cyclic number.

It is not a de Polignac number, because 111104112441121 - 2²¹ = 111104110343969 is a prime.

It is not a weakly prime, because it can be changed into another prime (111104112441221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55552056220560 + 55552056220561.

It is an arithmetic number, because the mean of its divisors is an integer number (55552056220561).

Almost surely, 2^{111104112441121} is an apocalyptic number.

It is an amenable number.

111104112441121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111104112441121 is an equidigital number, since it uses as much as digits as its factorization.

111104112441121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 25.

Adding to 111104112441121 its reverse (121144211401111), we get a palindrome (232248323842232).

The spelling of 111104112441121 in words is "one hundred eleven trillion, one hundred four billion, one hundred twelve million, four hundred forty-one thousand, one hundred twenty-one".