131130230212 has 12 divisors (see below), whose sum is σ = 235680008620. Its totient is φ = 63793084896.

The previous prime is 131130230141. The next prime is 131130230219. The reversal of 131130230212 is 212032031131.

It can be written as a sum of positive squares in 2 ways, for example, as 82194596416 + 48935633796 = 286696^2 + 221214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131130230212.

It is not an unprimeable number, because it can be changed into a prime (131130230219) 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, 443007387 + ... + 443007682.

Almost surely, 2^131130230212 is an apocalyptic number.

It is an amenable number.

131130230212 is a deficient number, since it is larger than the sum of its proper divisors (104549778408).

131130230212 is a wasteful number, since it uses less digits than its factorization.

131130230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886015110 (or 886015108 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131130230212 its reverse (212032031131), we get a palindrome (343162261343).

The spelling of 131130230212 in words is "one hundred thirty-one billion, one hundred thirty million, two hundred thirty thousand, two hundred twelve".