500120306730461 has 2 divisors, whose sum is σ = 500120306730462. Its totient is φ = 500120306730460.

The previous prime is 500120306730293. The next prime is 500120306730487. The reversal of 500120306730461 is 164037603021005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485532146622436 + 14588160108025 = 22034794^2 + 3819445^2 .

It is a cyclic number.

It is not a de Polignac number, because 500120306730461 - 2³⁴ = 500103126861277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500120306732461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250060153365230 + 250060153365231.

It is an arithmetic number, because the mean of its divisors is an integer number (250060153365231).

Almost surely, 2^{500120306730461} is an apocalyptic number.

It is an amenable number.

500120306730461 is a deficient number, since it is larger than the sum of its proper divisors (1).

500120306730461 is an equidigital number, since it uses as much as digits as its factorization.

500120306730461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 500120306730461 its reverse (164037603021005), we get a palindrome (664157909751466).

The spelling of 500120306730461 in words is "five hundred trillion, one hundred twenty billion, three hundred six million, seven hundred thirty thousand, four hundred sixty-one".