13220131393 has 4 divisors (see below), whose sum is σ = 15108721600. Its totient is φ = 11331541188.

The previous prime is 13220131367. The next prime is 13220131399. The reversal of 13220131393 is 39313102231.

13220131393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13220131393 - 2⁹ = 13220130881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13220131399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944295093 + ... + 944295106.

It is an arithmetic number, because the mean of its divisors is an integer number (3777180400).

Almost surely, 2^13220131393 is an apocalyptic number.

It is an amenable number.

13220131393 is a deficient number, since it is larger than the sum of its proper divisors (1888590207).

13220131393 is an equidigital number, since it uses as much as digits as its factorization.

13220131393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888590206.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 13220131393 in words is "thirteen billion, two hundred twenty million, one hundred thirty-one thousand, three hundred ninety-three".