231533531053152 has 96 divisors (see below), whose sum is σ = 607945738982400. Its totient is φ = 77156231623680.

The previous prime is 231533531053109. The next prime is 231533531053171. The reversal of 231533531053152 is 251350135335132.

It is a tau number, because it is divible by the number of its divisors (96).

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, 7875543349 + ... + 7875572747.

It is an arithmetic number, because the mean of its divisors is an integer number (6332768114400).

Almost surely, 2^{231533531053152} is an apocalyptic number.

It is an amenable number.

231533531053152 is an abundant number, since it is smaller than the sum of its proper divisors (376412207929248).

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

231533531053152 is a wasteful number, since it uses less digits than its factorization.

231533531053152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49596 (or 49588 counting only the distinct ones).

The product of its (nonzero) digits is 607500, while the sum is 42.

Adding to 231533531053152 its reverse (251350135335132), we get a palindrome (482883666388284).

The spelling of 231533531053152 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, five hundred thirty-one million, fifty-three thousand, one hundred fifty-two".