231532433540543 has 8 divisors (see below), whose sum is σ = 243815566236000. Its totient is φ = 219434009607648.

The previous prime is 231532433540491. The next prime is 231532433540593. The reversal of 231532433540543 is 345045334235132.

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

It is not a de Polignac number, because 231532433540543 - 2⁶ = 231532433540479 is a prime.

It is a super-2 number, since 2×231532433540543² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231532433540593) 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, 46177188068 + ... + 46177193081.

It is an arithmetic number, because the mean of its divisors is an integer number (30476945779500).

Almost surely, 2^{231532433540543} is an apocalyptic number.

231532433540543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

231532433540543 is a deficient number, since it is larger than the sum of its proper divisors (12283132695457).

231532433540543 is a wasteful number, since it uses less digits than its factorization.

231532433540543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92354381281.

The product of its (nonzero) digits is 7776000, while the sum is 47.

Adding to 231532433540543 its reverse (345045334235132), we get a palindrome (576577767775675).

The spelling of 231532433540543 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, four hundred thirty-three million, five hundred forty thousand, five hundred forty-three".