231143043 has 8 divisors (see below), whose sum is σ = 309805056. Its totient is φ = 153288200.

The previous prime is 231143023. The next prime is 231143053. The reversal of 231143043 is 340341132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231143043 - 2⁶ = 231142979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231143023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201123 + ... + 202268.

It is an arithmetic number, because the mean of its divisors is an integer number (38725632).

Almost surely, 2^231143043 is an apocalyptic number.

231143043 is a deficient number, since it is larger than the sum of its proper divisors (78662013).

231143043 is a wasteful number, since it uses less digits than its factorization.

231143043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403585.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231143043 is about 15203.3891945184. The cubic root of 231143043 is about 613.7058674953.

Adding to 231143043 its reverse (340341132), we get a palindrome (571484175).

It can be divided in two parts, 2311 and 43043, that added together give a palindrome (45354).

The spelling of 231143043 in words is "two hundred thirty-one million, one hundred forty-three thousand, forty-three".