531231033231112 has 64 divisors (see below), whose sum is σ = 1040432240764800. Its totient is φ = 253960808855040.

The previous prime is 531231033231061. The next prime is 531231033231167. The reversal of 531231033231112 is 211132330132135.

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, 1185662812 + ... + 1186110772.

It is an arithmetic number, because the mean of its divisors is an integer number (16256753761950).

Almost surely, 2^{531231033231112} is an apocalyptic number.

It is an amenable number.

531231033231112 is a deficient number, since it is larger than the sum of its proper divisors (509201207533688).

531231033231112 is a wasteful number, since it uses less digits than its factorization.

531231033231112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497726 (or 497722 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 531231033231112 its reverse (211132330132135), we get a palindrome (742363363363247).

The spelling of 531231033231112 in words is "five hundred thirty-one trillion, two hundred thirty-one billion, thirty-three million, two hundred thirty-one thousand, one hundred twelve".