13313231223 has 4 divisors (see below), whose sum is σ = 17750974968. Its totient is φ = 8875487480.

The previous prime is 13313231221. The next prime is 13313231227. The reversal of 13313231223 is 32213231331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32213231331 = 3 ⋅10737743777.

It is a cyclic number.

It is not a de Polignac number, because 13313231223 - 2¹ = 13313231221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13313231193 and 13313231202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313231221) 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, 2218871868 + ... + 2218871873.

It is an arithmetic number, because the mean of its divisors is an integer number (4437743742).

Almost surely, 2^13313231223 is an apocalyptic number.

13313231223 is a deficient number, since it is larger than the sum of its proper divisors (4437743745).

13313231223 is an equidigital number, since it uses as much as digits as its factorization.

13313231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437743744.

The product of its digits is 1944, while the sum is 24.

Adding to 13313231223 its reverse (32213231331), we get a palindrome (45526462554).

The spelling of 13313231223 in words is "thirteen billion, three hundred thirteen million, two hundred thirty-one thousand, two hundred twenty-three".