4000231143 has 16 divisors (see below), whose sum is σ = 5931744000. Its totient is φ = 2664356760.

The previous prime is 4000231111. The next prime is 4000231187. The reversal of 4000231143 is 3411320004.

It is not a de Polignac number, because 4000231143 - 2⁵ = 4000231111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000231043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38443 + ... + 97356.

It is an arithmetic number, because the mean of its divisors is an integer number (370734000).

Almost surely, 2^4000231143 is an apocalyptic number.

4000231143 is a deficient number, since it is larger than the sum of its proper divisors (1931512857).

4000231143 is a wasteful number, since it uses less digits than its factorization.

4000231143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136899 (or 136893 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4000231143 is about 63247.3805228327. The cubic root of 4000231143 is about 1587.4316277660.

Adding to 4000231143 its reverse (3411320004), we get a palindrome (7411551147).

The spelling of 4000231143 in words is "four billion, two hundred thirty-one thousand, one hundred forty-three".