4121220240043 has 4 divisors (see below), whose sum is σ = 4121277031168. Its totient is φ = 4121163448920.

The previous prime is 4121220240023. The next prime is 4121220240089. The reversal of 4121220240043 is 3400420221214.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4121220240043 - 2¹³ = 4121220231851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121220240023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28286571 + ... + 28431892.

It is an arithmetic number, because the mean of its divisors is an integer number (1030319257792).

Almost surely, 2^{4121220240043} is an apocalyptic number.

4121220240043 is a deficient number, since it is larger than the sum of its proper divisors (56791125).

4121220240043 is an equidigital number, since it uses as much as digits as its factorization.

4121220240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56791124.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 4121220240043 its reverse (3400420221214), we get a palindrome (7521640461257).

The spelling of 4121220240043 in words is "four trillion, one hundred twenty-one billion, two hundred twenty million, two hundred forty thousand, forty-three".