13031323223 has 4 divisors (see below), whose sum is σ = 13717182360. Its totient is φ = 12345464088.

The previous prime is 13031323213. The next prime is 13031323243. The reversal of 13031323223 is 32232313031.

13031323223 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 an emirpimes, since its reverse is a distinct semiprime: 32232313031 = 5939 ⋅5427229.

It is a cyclic number.

It is not a de Polignac number, because 13031323223 - 2¹² = 13031319127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031323213) 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, 342929540 + ... + 342929577.

It is an arithmetic number, because the mean of its divisors is an integer number (3429295590).

Almost surely, 2^13031323223 is an apocalyptic number.

13031323223 is a deficient number, since it is larger than the sum of its proper divisors (685859137).

13031323223 is an equidigital number, since it uses as much as digits as its factorization.

13031323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685859136.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13031323223 its reverse (32232313031), we get a palindrome (45263636254).

The spelling of 13031323223 in words is "thirteen billion, thirty-one million, three hundred twenty-three thousand, two hundred twenty-three".