243130122503 has 8 divisors (see below), whose sum is σ = 255933361920. Its totient is φ = 230327574840.

The previous prime is 243130122461. The next prime is 243130122511. The reversal of 243130122503 is 305221031342.

It is a happy number.

243130122503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243130122503 - 2⁶ = 243130122439 is a prime.

It is a super-2 number, since 2×243130122503² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243130122553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648626 + ... + 952352.

It is an arithmetic number, because the mean of its divisors is an integer number (31991670240).

Almost surely, 2^243130122503 is an apocalyptic number.

243130122503 is a deficient number, since it is larger than the sum of its proper divisors (12803239417).

243130122503 is a wasteful number, since it uses less digits than its factorization.

243130122503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345877.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 243130122503 its reverse (305221031342), we get a palindrome (548351153845).

The spelling of 243130122503 in words is "two hundred forty-three billion, one hundred thirty million, one hundred twenty-two thousand, five hundred three".