5143112321 has 2 divisors, whose sum is σ = 5143112322. Its totient is φ = 5143112320.

The previous prime is 5143112311. The next prime is 5143112333. The reversal of 5143112321 is 1232113415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3910751296 + 1232361025 = 62536^2 + 35105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5143112321 is a prime.

It is not a weakly prime, because it can be changed into another prime (5143112311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571556160 + 2571556161.

It is an arithmetic number, because the mean of its divisors is an integer number (2571556161).

Almost surely, 2^5143112321 is an apocalyptic number.

It is an amenable number.

5143112321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5143112321 is an equidigital number, since it uses as much as digits as its factorization.

5143112321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 5143112321 is about 71715.4956825929. The cubic root of 5143112321 is about 1726.1372961942.

Adding to 5143112321 its reverse (1232113415), we get a palindrome (6375225736).

The spelling of 5143112321 in words is "five billion, one hundred forty-three million, one hundred twelve thousand, three hundred twenty-one".