231330131012 has 12 divisors (see below), whose sum is σ = 404901013440. Its totient is φ = 115644127176.

The previous prime is 231330130991. The next prime is 231330131017. The reversal of 231330131012 is 210131033132.

231330131012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231330131017) by changing a digit.

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, 5209712 + ... + 5253927.

It is an arithmetic number, because the mean of its divisors is an integer number (33741751120).

Almost surely, 2^231330131012 is an apocalyptic number.

It is an amenable number.

231330131012 is a deficient number, since it is larger than the sum of its proper divisors (173570882428).

231330131012 is a wasteful number, since it uses less digits than its factorization.

231330131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469170 (or 10469168 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231330131012 its reverse (210131033132), we get a palindrome (441461164144).

The spelling of 231330131012 in words is "two hundred thirty-one billion, three hundred thirty million, one hundred thirty-one thousand, twelve".