4231143391 has 2 divisors, whose sum is σ = 4231143392. Its totient is φ = 4231143390.

The previous prime is 4231143377. The next prime is 4231143443. The reversal of 4231143391 is 1933411324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4231143391 - 2⁵ = 4231143359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231143341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115571695 + 2115571696.

It is an arithmetic number, because the mean of its divisors is an integer number (2115571696).

Almost surely, 2^4231143391 is an apocalyptic number.

4231143391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231143391 is an equidigital number, since it uses as much as digits as its factorization.

4231143391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 4231143391 is about 65047.2396877838. The cubic root of 4231143391 is about 1617.4067373986.

The spelling of 4231143391 in words is "four billion, two hundred thirty-one million, one hundred forty-three thousand, three hundred ninety-one".