131212310012 has 24 divisors (see below), whose sum is σ = 273834387456. Its totient is φ = 53788897008.

The previous prime is 131212309999. The next prime is 131212310051. The reversal of 131212310012 is 210013212131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101872268 + ... + 101873555.

It is an arithmetic number, because the mean of its divisors is an integer number (11409766144).

Almost surely, 2^131212310012 is an apocalyptic number.

It is an amenable number.

131212310012 is an abundant number, since it is smaller than the sum of its proper divisors (142622077444).

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

131212310012 is a wasteful number, since it uses less digits than its factorization.

131212310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203745857 (or 203745855 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131212310012 its reverse (210013212131), we get a palindrome (341225522143).

The spelling of 131212310012 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred ten thousand, twelve".