121111001107 has 2 divisors, whose sum is σ = 121111001108. Its totient is φ = 121111001106.

The previous prime is 121111001071. The next prime is 121111001119. The reversal of 121111001107 is 701100111121.

Together with previous prime (121111001071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121111001107 - 2¹⁵ = 121110968339 is a prime.

It is not a weakly prime, because it can be changed into another prime (121111011107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555500553 + 60555500554.

It is an arithmetic number, because the mean of its divisors is an integer number (60555500554).

Almost surely, 2^121111001107 is an apocalyptic number.

121111001107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111001107 is an equidigital number, since it uses as much as digits as its factorization.

121111001107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 16.

Adding to 121111001107 its reverse (701100111121), we get a palindrome (822211112228).

The spelling of 121111001107 in words is "one hundred twenty-one billion, one hundred eleven million, one thousand, one hundred seven".