231231203031012 has 24 divisors (see below), whose sum is σ = 539562729398112. Its totient is φ = 77073745440000.

The previous prime is 231231203030983. The next prime is 231231203031019. The reversal of 231231203031012 is 210130302132132.

It is not an unprimeable number, because it can be changed into a prime (231231203031019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414989614 + ... + 415546437.

It is an arithmetic number, because the mean of its divisors is an integer number (22481780391588).

Almost surely, 2^{231231203031012} is an apocalyptic number.

It is an amenable number.

231231203031012 is an abundant number, since it is smaller than the sum of its proper divisors (308331526367100).

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

231231203031012 is a wasteful number, since it uses less digits than its factorization.

231231203031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830559259 (or 830559257 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 231231203031012 its reverse (210130302132132), we get a palindrome (441361505163144).

The spelling of 231231203031012 in words is "two hundred thirty-one trillion, two hundred thirty-one billion, two hundred three million, thirty-one thousand, twelve".