131206223505126 has 96 divisors (see below), whose sum is σ = 338057675760384. Its totient is φ = 32980198507200.

The previous prime is 131206223505121. The next prime is 131206223505127. The reversal of 131206223505126 is 621505322602131.

131206223505126 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 (131206223505121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147316765 + ... + 148204728.

It is an arithmetic number, because the mean of its divisors is an integer number (3521434122504).

Almost surely, 2^{131206223505126} is an apocalyptic number.

131206223505126 is an abundant number, since it is smaller than the sum of its proper divisors (206851452255258).

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

131206223505126 is a wasteful number, since it uses less digits than its factorization.

131206223505126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295521578 (or 295521547 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 131206223505126 in words is "one hundred thirty-one trillion, two hundred six billion, two hundred twenty-three million, five hundred five thousand, one hundred twenty-six".