4320143231 has 2 divisors, whose sum is σ = 4320143232. Its totient is φ = 4320143230.

The previous prime is 4320143209. The next prime is 4320143237. The reversal of 4320143231 is 1323410234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4320143231 is a prime.

It is a super-2 number, since 2×4320143231² = 37327275072710238722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 4320143197 and 4320143206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4320143237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160071615 + 2160071616.

It is an arithmetic number, because the mean of its divisors is an integer number (2160071616).

Almost surely, 2^4320143231 is an apocalyptic number.

4320143231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4320143231 is an equidigital number, since it uses as much as digits as its factorization.

4320143231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 4320143231 is about 65727.7964867224. The cubic root of 4320143231 is about 1628.6685692372.

Adding to 4320143231 its reverse (1323410234), we get a palindrome (5643553465).

The spelling of 4320143231 in words is "four billion, three hundred twenty million, one hundred forty-three thousand, two hundred thirty-one".