5131424321 has 2 divisors, whose sum is σ = 5131424322. Its totient is φ = 5131424320.

The previous prime is 5131424293. The next prime is 5131424323. The reversal of 5131424321 is 1234241315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5117399296 + 14025025 = 71536^2 + 3745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5131424321 is a prime.

It is a super-2 number, since 2×5131424321² = 52663031124300622082, which contains 22 as substring.

Together with 5131424323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5131424323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565712160 + 2565712161.

It is an arithmetic number, because the mean of its divisors is an integer number (2565712161).

Almost surely, 2^5131424321 is an apocalyptic number.

It is an amenable number.

5131424321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131424321 is an equidigital number, since it uses as much as digits as its factorization.

5131424321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 5131424321 is about 71633.9606681077. The cubic root of 5131424321 is about 1724.8287244074.

Adding to 5131424321 its reverse (1234241315), we get a palindrome (6365665636).

The spelling of 5131424321 in words is "five billion, one hundred thirty-one million, four hundred twenty-four thousand, three hundred twenty-one".