121220000120143 has 2 divisors, whose sum is σ = 121220000120144. Its totient is φ = 121220000120142.

The previous prime is 121220000120117. The next prime is 121220000120227. The reversal of 121220000120143 is 341021000022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121220000120143 - 2⁴¹ = 119020976864591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121220000120143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220000120243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610000060071 + 60610000060072.

It is an arithmetic number, because the mean of its divisors is an integer number (60610000060072).

Almost surely, 2^{121220000120143} is an apocalyptic number.

121220000120143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220000120143 is an equidigital number, since it uses as much as digits as its factorization.

121220000120143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121220000120143 its reverse (341021000022121), we get a palindrome (462241000142264).

The spelling of 121220000120143 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty thousand, one hundred forty-three".