501303343243 has 2 divisors, whose sum is σ = 501303343244. Its totient is φ = 501303343242.

The previous prime is 501303343109. The next prime is 501303343273. The reversal of 501303343243 is 342343303105.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501303343243 is a prime.

It is not a weakly prime, because it can be changed into another prime (501303343273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250651671621 + 250651671622.

It is an arithmetic number, because the mean of its divisors is an integer number (250651671622).

Almost surely, 2^501303343243 is an apocalyptic number.

501303343243 is a deficient number, since it is larger than the sum of its proper divisors (1).

501303343243 is an equidigital number, since it uses as much as digits as its factorization.

501303343243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 501303343243 its reverse (342343303105), we get a palindrome (843646646348).

The spelling of 501303343243 in words is "five hundred one billion, three hundred three million, three hundred forty-three thousand, two hundred forty-three".