131443104614243 has 4 divisors (see below), whose sum is σ = 135975625463040. Its totient is φ = 126910583765448.

The previous prime is 131443104614221. The next prime is 131443104614279. The reversal of 131443104614243 is 342416401344131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131443104614243 - 2⁶ = 131443104614179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131443104614243.

It is not an unprimeable number, because it can be changed into a prime (131443104614293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2266260424355 + ... + 2266260424412.

It is an arithmetic number, because the mean of its divisors is an integer number (33993906365760).

Almost surely, 2^{131443104614243} is an apocalyptic number.

131443104614243 is a deficient number, since it is larger than the sum of its proper divisors (4532520848797).

131443104614243 is an equidigital number, since it uses as much as digits as its factorization.

131443104614243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532520848796.

The product of its (nonzero) digits is 331776, while the sum is 41.

Adding to 131443104614243 its reverse (342416401344131), we get a palindrome (473859505958374).

The spelling of 131443104614243 in words is "one hundred thirty-one trillion, four hundred forty-three billion, one hundred four million, six hundred fourteen thousand, two hundred forty-three".