4121003420243 has 2 divisors, whose sum is σ = 4121003420244. Its totient is φ = 4121003420242.

The previous prime is 4121003420221. The next prime is 4121003420311. The reversal of 4121003420243 is 3420243001214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4121003420243 - 2⁶ = 4121003420179 is a prime.

It is not a weakly prime, because it can be changed into another prime (4121003422243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060501710121 + 2060501710122.

It is an arithmetic number, because the mean of its divisors is an integer number (2060501710122).

Almost surely, 2^{4121003420243} is an apocalyptic number.

4121003420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121003420243 is an equidigital number, since it uses as much as digits as its factorization.

4121003420243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4121003420243 its reverse (3420243001214), we get a palindrome (7541246421457).

The spelling of 4121003420243 in words is "four trillion, one hundred twenty-one billion, three million, four hundred twenty thousand, two hundred forty-three".