231132333012 has 72 divisors (see below), whose sum is σ = 636195349440. Its totient is φ = 65107687680.

The previous prime is 231132333001. The next prime is 231132333031. The reversal of 231132333012 is 210333231132.

231132333012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 2726437 + ... + 2809932.

It is an arithmetic number, because the mean of its divisors is an integer number (8836046520).

Almost surely, 2^231132333012 is an apocalyptic number.

It is an amenable number.

231132333012 is an abundant number, since it is smaller than the sum of its proper divisors (405063016428).

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

231132333012 is a wasteful number, since it uses less digits than its factorization.

231132333012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536461 (or 5536452 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231132333012 its reverse (210333231132), we get a palindrome (441465564144).

The spelling of 231132333012 in words is "two hundred thirty-one billion, one hundred thirty-two million, three hundred thirty-three thousand, twelve".