131617891292 has 12 divisors (see below), whose sum is σ = 230635583640. Its totient is φ = 65722010256.

The previous prime is 131617891241. The next prime is 131617891297. The reversal of 131617891292 is 292198716131.

131617891292 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 131617891292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131617891297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21730442 + ... + 21736497.

It is an arithmetic number, because the mean of its divisors is an integer number (19219631970).

Almost surely, 2^131617891292 is an apocalyptic number.

It is an amenable number.

131617891292 is a deficient number, since it is larger than the sum of its proper divisors (99017692348).

131617891292 is a wasteful number, since it uses less digits than its factorization.

131617891292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43467700 (or 43467698 counting only the distinct ones).

The product of its digits is 326592, while the sum is 50.

The spelling of 131617891292 in words is "one hundred thirty-one billion, six hundred seventeen million, eight hundred ninety-one thousand, two hundred ninety-two".