231532533124404 has 24 divisors (see below), whose sum is σ = 540243107520480. Its totient is φ = 77177435294304.

The previous prime is 231532533124283. The next prime is 231532533124411. The reversal of 231532533124404 is 404421335235132.

It is a super-2 number, since 2×231532533124404² (a number of 30 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 4038342 + ... + 21894594.

It is an arithmetic number, because the mean of its divisors is an integer number (22510129480020).

Almost surely, 2^{231532533124404} is an apocalyptic number.

It is an amenable number.

231532533124404 is an abundant number, since it is smaller than the sum of its proper divisors (308710574396076).

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

231532533124404 is a wasteful number, since it uses less digits than its factorization.

231532533124404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18936799 (or 18936797 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

Adding to 231532533124404 its reverse (404421335235132), we get a palindrome (635953868359536).

The spelling of 231532533124404 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, five hundred thirty-three million, one hundred twenty-four thousand, four hundred four".