13320231223 has 4 divisors (see below), whose sum is σ = 14344864408. Its totient is φ = 12295598040.

The previous prime is 13320231173. The next prime is 13320231227. The reversal of 13320231223 is 32213202331.

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-13320231223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13320231194 and 13320231203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320231227) 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, 512316573 + ... + 512316598.

It is an arithmetic number, because the mean of its divisors is an integer number (3586216102).

Almost surely, 2^13320231223 is an apocalyptic number.

13320231223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13320231223 is a deficient number, since it is larger than the sum of its proper divisors (1024633185).

13320231223 is a wasteful number, since it uses less digits than its factorization.

13320231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024633184.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13320231223 its reverse (32213202331), we get a palindrome (45533433554).

The spelling of 13320231223 in words is "thirteen billion, three hundred twenty million, two hundred thirty-one thousand, two hundred twenty-three".