121030440143 has 2 divisors, whose sum is σ = 121030440144. Its totient is φ = 121030440142.

The previous prime is 121030440133. The next prime is 121030440229. The reversal of 121030440143 is 341044030121.

It is a weak prime.

It is an emirp because it is prime and its reverse (341044030121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121030440143 - 2¹⁰ = 121030439119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121030440133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515220071 + 60515220072.

It is an arithmetic number, because the mean of its divisors is an integer number (60515220072).

Almost surely, 2^121030440143 is an apocalyptic number.

121030440143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030440143 is an equidigital number, since it uses as much as digits as its factorization.

121030440143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121030440143 its reverse (341044030121), we get a palindrome (462074470264).

The spelling of 121030440143 in words is "one hundred twenty-one billion, thirty million, four hundred forty thousand, one hundred forty-three".