231534534103543 has 32 divisors (see below), whose sum is σ = 274025089074240. Its totient is φ = 193229438976000.

The previous prime is 231534534103463. The next prime is 231534534103567. The reversal of 231534534103543 is 345301435435132.

231534534103543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231534534103543 - 2¹³ = 231534534095351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231534534103493 and 231534534103502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231534534103583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30986173 + ... + 37725481.

It is an arithmetic number, because the mean of its divisors is an integer number (8563284033570).

Almost surely, 2^{231534534103543} is an apocalyptic number.

231534534103543 is a deficient number, since it is larger than the sum of its proper divisors (42490554970697).

231534534103543 is a wasteful number, since it uses less digits than its factorization.

231534534103543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6743859.

The product of its (nonzero) digits is 3888000, while the sum is 46.

Adding to 231534534103543 its reverse (345301435435132), we get a palindrome (576835969538675).

The spelling of 231534534103543 in words is "two hundred thirty-one trillion, five hundred thirty-four billion, five hundred thirty-four million, one hundred three thousand, five hundred forty-three".