4242720310073 has 6 divisors (see below), whose sum is σ = 4935409340346. Its totient is φ = 3636617408592.

The previous prime is 4242720310067. The next prime is 4242720310181. The reversal of 4242720310073 is 3700130272424.

It can be written as a sum of positive squares in only one way, i.e., 2221807868329 + 2020912441744 = 1490573^2 + 1421588^2 .

It is not a de Polignac number, because 4242720310073 - 2⁴ = 4242720310057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4242720310013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43293064340 + ... + 43293064437.

It is an arithmetic number, because the mean of its divisors is an integer number (822568223391).

Almost surely, 2^{4242720310073} is an apocalyptic number.

It is an amenable number.

4242720310073 is a deficient number, since it is larger than the sum of its proper divisors (692689030273).

4242720310073 is an equidigital number, since it uses as much as digits as its factorization.

4242720310073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86586128791 (or 86586128784 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 4242720310073 its reverse (3700130272424), we get a palindrome (7942850582497).

The spelling of 4242720310073 in words is "four trillion, two hundred forty-two billion, seven hundred twenty million, three hundred ten thousand, seventy-three".