131313243134403 has 12 divisors (see below), whose sum is σ = 206917837666488. Its totient is φ = 79583783717760.

The previous prime is 131313243134399. The next prime is 131313243134449. The reversal of 131313243134403 is 304431342313131.

131313243134403 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 1 + 3 + 243 + 1 + 3 + 4 + 403 = 666.

It is not a de Polignac number, because 131313243134403 - 2² = 131313243134399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131313243134603) 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 11 ways as a sum of consecutive naturals, for example, 663198197550 + ... + 663198197747.

It is an arithmetic number, because the mean of its divisors is an integer number (17243153138874).

Almost surely, 2^{131313243134403} is an apocalyptic number.

131313243134403 is a deficient number, since it is larger than the sum of its proper divisors (75604594532085).

131313243134403 is a wasteful number, since it uses less digits than its factorization.

131313243134403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326396395314 (or 1326396395311 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

Adding to 131313243134403 its reverse (304431342313131), we get a palindrome (435744585447534).

The spelling of 131313243134403 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred forty-three million, one hundred thirty-four thousand, four hundred three".