13012320223 has 4 divisors (see below), whose sum is σ = 14871223120. Its totient is φ = 11153417328.

The previous prime is 13012320199. The next prime is 13012320227. The reversal of 13012320223 is 32202321031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32202321031 = 1627 ⋅19792453.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13012320223 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 13012320223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012320227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929451438 + ... + 929451451.

It is an arithmetic number, because the mean of its divisors is an integer number (3717805780).

Almost surely, 2^13012320223 is an apocalyptic number.

13012320223 is a deficient number, since it is larger than the sum of its proper divisors (1858902897).

13012320223 is an equidigital number, since it uses as much as digits as its factorization.

13012320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858902896.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13012320223 its reverse (32202321031), we get a palindrome (45214641254).

The spelling of 13012320223 in words is "thirteen billion, twelve million, three hundred twenty thousand, two hundred twenty-three".