121234243265011 has 2 divisors, whose sum is σ = 121234243265012. Its totient is φ = 121234243265010.

The previous prime is 121234243264969. The next prime is 121234243265029. The reversal of 121234243265011 is 110562342432121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121234243265011 - 2¹¹ = 121234243262963 is a prime.

It is not a weakly prime, because it can be changed into another prime (121234243265041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60617121632505 + 60617121632506.

It is an arithmetic number, because the mean of its divisors is an integer number (60617121632506).

Almost surely, 2^{121234243265011} is an apocalyptic number.

121234243265011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121234243265011 is an equidigital number, since it uses as much as digits as its factorization.

121234243265011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 121234243265011 its reverse (110562342432121), we get a palindrome (231796585697132).

The spelling of 121234243265011 in words is "one hundred twenty-one trillion, two hundred thirty-four billion, two hundred forty-three million, two hundred sixty-five thousand, eleven".