4245503111081 has 2 divisors, whose sum is σ = 4245503111082. Its totient is φ = 4245503111080.

The previous prime is 4245503110991. The next prime is 4245503111107. The reversal of 4245503111081 is 1801113055424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4025620896025 + 219882215056 = 2006395^2 + 468916^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245503111081 - 2³⁴ = 4228323241897 is a prime.

It is a super-3 number, since 3×4245503111081³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4245503111881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122751555540 + 2122751555541.

It is an arithmetic number, because the mean of its divisors is an integer number (2122751555541).

Almost surely, 2^{4245503111081} is an apocalyptic number.

It is an amenable number.

4245503111081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245503111081 is an equidigital number, since it uses as much as digits as its factorization.

4245503111081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 4245503111081 in words is "four trillion, two hundred forty-five billion, five hundred three million, one hundred eleven thousand, eighty-one".