131044251002543 has 4 divisors (see below), whose sum is σ = 132623097400248. Its totient is φ = 129465404604840.

The previous prime is 131044251002387. The next prime is 131044251002573. The reversal of 131044251002543 is 345200152440131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131044251002543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131044251002573) 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, 789423198728 + ... + 789423198893.

It is an arithmetic number, because the mean of its divisors is an integer number (33155774350062).

Almost surely, 2^{131044251002543} is an apocalyptic number.

131044251002543 is a deficient number, since it is larger than the sum of its proper divisors (1578846397705).

131044251002543 is an equidigital number, since it uses as much as digits as its factorization.

131044251002543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578846397704.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 131044251002543 in words is "one hundred thirty-one trillion, forty-four billion, two hundred fifty-one million, two thousand, five hundred forty-three".