231533531202016 has 48 divisors (see below), whose sum is σ = 457033612941360. Its totient is φ = 115461904481280.

The previous prime is 231533531201977. The next prime is 231533531202089. The reversal of 231533531202016 is 610202135335132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12154555 + ... + 24714373.

It is an arithmetic number, because the mean of its divisors is an integer number (9521533602945).

Almost surely, 2^{231533531202016} is an apocalyptic number.

It is an amenable number.

231533531202016 is a deficient number, since it is larger than the sum of its proper divisors (225500081739344).

231533531202016 is a wasteful number, since it uses less digits than its factorization.

231533531202016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12561347 (or 12561339 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 231533531202016 its reverse (610202135335132), we get a palindrome (841735666537148).

The spelling of 231533531202016 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, five hundred thirty-one million, two hundred two thousand, sixteen".