131212330212 has 12 divisors (see below), whose sum is σ = 306162103856. Its totient is φ = 43737443400.

The previous prime is 131212330211. The next prime is 131212330247. The reversal of 131212330212 is 212033212131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (131212330211) 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, 5467180414 + ... + 5467180437.

Almost surely, 2^131212330212 is an apocalyptic number.

131212330212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131212330212 is an abundant number, since it is smaller than the sum of its proper divisors (174949773644).

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

131212330212 is a wasteful number, since it uses less digits than its factorization.

131212330212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10934360858 (or 10934360856 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131212330212 its reverse (212033212131), we get a palindrome (343245542343).

The spelling of 131212330212 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred thirty thousand, two hundred twelve".