4243232400073 has 2 divisors, whose sum is σ = 4243232400074. Its totient is φ = 4243232400072.

The previous prime is 4243232400019. The next prime is 4243232400131. The reversal of 4243232400073 is 3700042323424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3397342003344 + 845890396729 = 1843188^2 + 919723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243232400073 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243232400373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121616200036 + 2121616200037.

It is an arithmetic number, because the mean of its divisors is an integer number (2121616200037).

Almost surely, 2^{4243232400073} is an apocalyptic number.

It is an amenable number.

4243232400073 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243232400073 is an equidigital number, since it uses as much as digits as its factorization.

4243232400073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 34.

Adding to 4243232400073 its reverse (3700042323424), we get a palindrome (7943274723497).

The spelling of 4243232400073 in words is "four trillion, two hundred forty-three billion, two hundred thirty-two million, four hundred thousand, seventy-three".