131812272531822 has 32 divisors (see below), whose sum is σ = 263904527865600. Its totient is φ = 43890777927360.

The previous prime is 131812272531767. The next prime is 131812272531847. The reversal of 131812272531822 is 228135272218131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27887322 + ... + 32269602.

It is an arithmetic number, because the mean of its divisors is an integer number (8247016495800).

Almost surely, 2^{131812272531822} is an apocalyptic number.

131812272531822 is an abundant number, since it is smaller than the sum of its proper divisors (132092255333778).

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

131812272531822 is a wasteful number, since it uses less digits than its factorization.

131812272531822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4387608.

The product of its digits is 645120, while the sum is 48.

The spelling of 131812272531822 in words is "one hundred thirty-one trillion, eight hundred twelve billion, two hundred seventy-two million, five hundred thirty-one thousand, eight hundred twenty-two".