231341440012 has 12 divisors (see below), whose sum is σ = 404856040680. Its totient is φ = 115668285536.

The previous prime is 231341440009. The next prime is 231341440013. The reversal of 231341440012 is 210044143132.

It is not an unprimeable number, because it can be changed into a prime (231341440013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385738 + ... + 781969.

It is an arithmetic number, because the mean of its divisors is an integer number (33738003390).

Almost surely, 2^231341440012 is an apocalyptic number.

It is an amenable number.

231341440012 is a deficient number, since it is larger than the sum of its proper divisors (173514600668).

231341440012 is a wasteful number, since it uses less digits than its factorization.

231341440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217240 (or 1217238 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231341440012 its reverse (210044143132), we get a palindrome (441385583144).

The spelling of 231341440012 in words is "two hundred thirty-one billion, three hundred forty-one million, four hundred forty thousand, twelve".