231330121112 has 16 divisors (see below), whose sum is σ = 448700666400. Its totient is φ = 111676610080.

The previous prime is 231330121103. The next prime is 231330121129. The reversal of 231330121112 is 211121033132.

It is a happy number.

231330121112 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 3 ways as a sum of consecutive naturals, for example, 498556064 + ... + 498556527.

It is an arithmetic number, because the mean of its divisors is an integer number (28043791650).

Almost surely, 2^231330121112 is an apocalyptic number.

It is an amenable number.

231330121112 is a deficient number, since it is larger than the sum of its proper divisors (217370545288).

231330121112 is a wasteful number, since it uses less digits than its factorization.

231330121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997112626 (or 997112622 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231330121112 its reverse (211121033132), we get a palindrome (442451154244).

The spelling of 231330121112 in words is "two hundred thirty-one billion, three hundred thirty million, one hundred twenty-one thousand, one hundred twelve".