231534534103542 has 32 divisors (see below), whose sum is σ = 516571072133760. Its totient is φ = 76870695249000.

The previous prime is 231534534103463. The next prime is 231534534103567. The reversal of 231534534103542 is 245301435435132.

231534534103542 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 3 + 4 + 534 + 103 + 5 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8541174808 + ... + 8541201915.

It is an arithmetic number, because the mean of its divisors is an integer number (16142846004180).

Almost surely, 2^{231534534103542} is an apocalyptic number.

231534534103542 is an abundant number, since it is smaller than the sum of its proper divisors (285036538030218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231534534103542 is a wasteful number, since it uses less digits than its factorization.

231534534103542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17082376985 (or 17082376979 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 45.

Adding to 231534534103542 its reverse (245301435435132), we get a palindrome (476835969538674).

The spelling of 231534534103542 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-two".