13231211313 has 4 divisors (see below), whose sum is σ = 17641615088. Its totient is φ = 8820807540.

The previous prime is 13231211291. The next prime is 13231211347. The reversal of 13231211313 is 31311213231.

It is a happy number.

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 not a de Polignac number, because 13231211313 - 2¹⁷ = 13231080241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13231211313.

It is not an unprimeable number, because it can be changed into a prime (13231211713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2205201883 + ... + 2205201888.

It is an arithmetic number, because the mean of its divisors is an integer number (4410403772).

Almost surely, 2^13231211313 is an apocalyptic number.

It is an amenable number.

13231211313 is a deficient number, since it is larger than the sum of its proper divisors (4410403775).

13231211313 is an equidigital number, since it uses as much as digits as its factorization.

13231211313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410403774.

The product of its digits is 324, while the sum is 21.

Adding to 13231211313 its reverse (31311213231), we get a palindrome (44542424544).

The spelling of 13231211313 in words is "thirteen billion, two hundred thirty-one million, two hundred eleven thousand, three hundred thirteen".