1121103124121 has 2 divisors, whose sum is σ = 1121103124122. Its totient is φ = 1121103124120.

The previous prime is 1121103124027. The next prime is 1121103124129. The reversal of 1121103124121 is 1214213011211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 905807124121 + 215296000000 = 951739^2 + 464000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121103124121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121103124093 and 1121103124102.

It is not a weakly prime, because it can be changed into another prime (1121103124129) 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, 560551562060 + 560551562061.

It is an arithmetic number, because the mean of its divisors is an integer number (560551562061).

Almost surely, 2^{1121103124121} is an apocalyptic number.

It is an amenable number.

1121103124121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121103124121 is an equidigital number, since it uses as much as digits as its factorization.

1121103124121 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 1121103124121 its reverse (1214213011211), we get a palindrome (2335316135332).

The spelling of 1121103124121 in words is "one trillion, one hundred twenty-one billion, one hundred three million, one hundred twenty-four thousand, one hundred twenty-one".