131773108783242 has 16 divisors (see below), whose sum is σ = 263546340769440. Its totient is φ = 43924349060592.

The previous prime is 131773108783237. The next prime is 131773108783289. The reversal of 131773108783242 is 242387801377131.

It is a happy number.

It is an unprimeable number.

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, 14614708 + ... + 21843440.

It is an arithmetic number, because the mean of its divisors is an integer number (16471646298090).

Almost surely, 2^{131773108783242} is an apocalyptic number.

131773108783242 is an abundant number, since it is smaller than the sum of its proper divisors (131773231986198).

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

131773108783242 is a wasteful number, since it uses less digits than its factorization.

131773108783242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10266917.

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 131773108783242 in words is "one hundred thirty-one trillion, seven hundred seventy-three billion, one hundred eight million, seven hundred eighty-three thousand, two hundred forty-two".