13231203113 has 4 divisors (see below), whose sum is σ = 13253219028. Its totient is φ = 13209187200.

The previous prime is 13231203101. The next prime is 13231203131. The reversal of 13231203113 is 31130213231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31130213231 = 13 ⋅2394631787.

It can be written as a sum of positive squares in 2 ways, for example, as 11315215129 + 1915987984 = 106373^2 + 43772^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231203113 - 2⁸ = 13231202857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231203133) 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, 11007056 + ... + 11008257.

It is an arithmetic number, because the mean of its divisors is an integer number (3313304757).

Almost surely, 2^13231203113 is an apocalyptic number.

It is an amenable number.

13231203113 is a deficient number, since it is larger than the sum of its proper divisors (22015915).

13231203113 is an equidigital number, since it uses as much as digits as its factorization.

13231203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22015914.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13231203113 its reverse (31130213231), we get a palindrome (44361416344).

The spelling of 13231203113 in words is "thirteen billion, two hundred thirty-one million, two hundred three thousand, one hundred thirteen".