720231143 has 2 divisors, whose sum is σ = 720231144. Its totient is φ = 720231142.

The previous prime is 720231139. The next prime is 720231179. The reversal of 720231143 is 341132027.

It is a weak prime.

It is an emirp because it is prime and its reverse (341132027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 720231143 - 2² = 720231139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720231103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360115571 + 360115572.

It is an arithmetic number, because the mean of its divisors is an integer number (360115572).

Almost surely, 2^720231143 is an apocalyptic number.

720231143 is a deficient number, since it is larger than the sum of its proper divisors (1).

720231143 is an equidigital number, since it uses as much as digits as its factorization.

720231143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 720231143 is about 26837.1224798785. The cubic root of 720231143 is about 896.3768506550.

The spelling of 720231143 in words is "seven hundred twenty million, two hundred thirty-one thousand, one hundred forty-three".