13281731383 has 4 divisors (see below), whose sum is σ = 13339730440. Its totient is φ = 13223732328.

The previous prime is 13281731341. The next prime is 13281731459. The reversal of 13281731383 is 38313718231.

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-13281731383 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 (13281731303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28999185 + ... + 28999642.

It is an arithmetic number, because the mean of its divisors is an integer number (3334932610).

Almost surely, 2^13281731383 is an apocalyptic number.

13281731383 is a deficient number, since it is larger than the sum of its proper divisors (57999057).

13281731383 is an equidigital number, since it uses as much as digits as its factorization.

13281731383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57999056.

The product of its digits is 72576, while the sum is 40.

The spelling of 13281731383 in words is "thirteen billion, two hundred eighty-one million, seven hundred thirty-one thousand, three hundred eighty-three".