121134401111 has 2 divisors, whose sum is σ = 121134401112. Its totient is φ = 121134401110.

The previous prime is 121134401107. The next prime is 121134401117. The reversal of 121134401111 is 111104431121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121134401111 - 2² = 121134401107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121134401117) 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, 60567200555 + 60567200556.

It is an arithmetic number, because the mean of its divisors is an integer number (60567200556).

Almost surely, 2^121134401111 is an apocalyptic number.

121134401111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121134401111 is an equidigital number, since it uses as much as digits as its factorization.

121134401111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121134401111 its reverse (111104431121), we get a palindrome (232238832232).

The spelling of 121134401111 in words is "one hundred twenty-one billion, one hundred thirty-four million, four hundred one thousand, one hundred eleven".