121012110143 has 2 divisors, whose sum is σ = 121012110144. Its totient is φ = 121012110142.

The previous prime is 121012110101. The next prime is 121012110161. The reversal of 121012110143 is 341011210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121012110143 - 2¹⁴ = 121012093759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012110743) 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, 60506055071 + 60506055072.

It is an arithmetic number, because the mean of its divisors is an integer number (60506055072).

Almost surely, 2^121012110143 is an apocalyptic number.

121012110143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012110143 is an equidigital number, since it uses as much as digits as its factorization.

121012110143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121012110143 its reverse (341011210121), we get a palindrome (462023320264).

The spelling of 121012110143 in words is "one hundred twenty-one billion, twelve million, one hundred ten thousand, one hundred forty-three".