131403004343243 has 4 divisors (see below), whose sum is σ = 139132592834040. Its totient is φ = 123673415852448.

The previous prime is 131403004343213. The next prime is 131403004343269. The reversal of 131403004343243 is 342343400304131.

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 131403004343243 - 2²⁸ = 131402735907787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131403004343203) 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, 3864794245373 + ... + 3864794245406.

It is an arithmetic number, because the mean of its divisors is an integer number (34783148208510).

Almost surely, 2^{131403004343243} is an apocalyptic number.

131403004343243 is a deficient number, since it is larger than the sum of its proper divisors (7729588490797).

131403004343243 is an equidigital number, since it uses as much as digits as its factorization.

131403004343243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729588490796.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 131403004343243 its reverse (342343400304131), we get a palindrome (473746404647374).

The spelling of 131403004343243 in words is "one hundred thirty-one trillion, four hundred three billion, four million, three hundred forty-three thousand, two hundred forty-three".