131440003243 has 4 divisors (see below), whose sum is σ = 131514729280. Its totient is φ = 131365277208.

The previous prime is 131440003169. The next prime is 131440003291. The reversal of 131440003243 is 342300044131.

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 131440003243 - 2¹³ = 131439995051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131440004243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37360380 + ... + 37363897.

It is an arithmetic number, because the mean of its divisors is an integer number (32878682320).

Almost surely, 2^131440003243 is an apocalyptic number.

131440003243 is a deficient number, since it is larger than the sum of its proper divisors (74726037).

131440003243 is an equidigital number, since it uses as much as digits as its factorization.

131440003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74726036.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 131440003243 its reverse (342300044131), we get a palindrome (473740047374).

The spelling of 131440003243 in words is "one hundred thirty-one billion, four hundred forty million, three thousand, two hundred forty-three".