131212330012 has 24 divisors (see below), whose sum is σ = 235245911040. Its totient is φ = 63999536640.

The previous prime is 131212329979. The next prime is 131212330019. The reversal of 131212330012 is 210033212131.

131212330012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212330019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854388 + ... + 1923844.

It is an arithmetic number, because the mean of its divisors is an integer number (9801912960).

Almost surely, 2^131212330012 is an apocalyptic number.

It is an amenable number.

131212330012 is a deficient number, since it is larger than the sum of its proper divisors (104033581028).

131212330012 is a wasteful number, since it uses less digits than its factorization.

131212330012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81021 (or 81019 counting only the distinct ones).

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

Adding to 131212330012 its reverse (210033212131), we get a palindrome (341245542143).

The spelling of 131212330012 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred thirty thousand, twelve".