13213213123 has 16 divisors (see below), whose sum is σ = 14465120256. Its totient is φ = 11969835840.

The previous prime is 13213213099. The next prime is 13213213129. The reversal of 13213213123 is 32131231231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13213213123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13213213094 and 13213213103.

It is not an unprimeable number, because it can be changed into a prime (13213213129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5543590 + ... + 5545972.

It is an arithmetic number, because the mean of its divisors is an integer number (904070016).

Almost surely, 2^13213213123 is an apocalyptic number.

13213213123 is a deficient number, since it is larger than the sum of its proper divisors (1251907133).

13213213123 is a wasteful number, since it uses less digits than its factorization.

13213213123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954.

The product of its digits is 648, while the sum is 22.

Adding to 13213213123 its reverse (32131231231), we get a palindrome (45344444354).

The spelling of 13213213123 in words is "thirteen billion, two hundred thirteen million, two hundred thirteen thousand, one hundred twenty-three".