131212310013 has 24 divisors (see below), whose sum is σ = 194818100256. Its totient is φ = 85037752800.

The previous prime is 131212309999. The next prime is 131212310051. The reversal of 131212310013 is 310013212131.

131212310013 is a `hidden beast` number, since 131 + 212 + 310 + 0 + 13 = 666.

It is not a de Polignac number, because 131212310013 - 2⁵ = 131212309981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212310063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221698 + ... + 558188.

It is an arithmetic number, because the mean of its divisors is an integer number (8117420844).

Almost surely, 2^131212310013 is an apocalyptic number.

It is an amenable number.

131212310013 is a deficient number, since it is larger than the sum of its proper divisors (63605790243).

131212310013 is a wasteful number, since it uses less digits than its factorization.

131212310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337705 (or 337702 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131212310013 its reverse (310013212131), we get a palindrome (441225522144).

The spelling of 131212310013 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred ten thousand, thirteen".