131212230333212 has 24 divisors (see below), whose sum is σ = 262428266187360. Its totient is φ = 56232997531200.

The previous prime is 131212230333211. The next prime is 131212230333313. The reversal of 131212230333212 is 212333032212131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212230333211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32010539 + ... + 35876162.

It is an arithmetic number, because the mean of its divisors is an integer number (10934511091140).

Almost surely, 2^{131212230333212} is an apocalyptic number.

It is an amenable number.

131212230333212 is an abundant number, since it is smaller than the sum of its proper divisors (131216035854148).

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

131212230333212 is a wasteful number, since it uses less digits than its factorization.

131212230333212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67955741 (or 67955739 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 131212230333212 its reverse (212333032212131), we get a palindrome (343545262545343).

The spelling of 131212230333212 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred thirty million, three hundred thirty-three thousand, two hundred twelve".