5135423243 has 2 divisors, whose sum is σ = 5135423244. Its totient is φ = 5135423242.

The previous prime is 5135423213. The next prime is 5135423261. The reversal of 5135423243 is 3423245315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5135423243 - 2²⁸ = 4866987787 is a prime.

It is not a weakly prime, because it can be changed into another prime (5135423213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2567711621 + 2567711622.

It is an arithmetic number, because the mean of its divisors is an integer number (2567711622).

Almost surely, 2^5135423243 is an apocalyptic number.

5135423243 is a deficient number, since it is larger than the sum of its proper divisors (1).

5135423243 is an equidigital number, since it uses as much as digits as its factorization.

5135423243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 32.

The square root of 5135423243 is about 71661.8674261284. The cubic root of 5135423243 is about 1725.2766614158.

Adding to 5135423243 its reverse (3423245315), we get a palindrome (8558668558).

The spelling of 5135423243 in words is "five billion, one hundred thirty-five million, four hundred twenty-three thousand, two hundred forty-three".