13123312212 has 36 divisors (see below), whose sum is σ = 31640729568. Its totient is φ = 4233322800.

The previous prime is 13123312207. The next prime is 13123312247. The reversal of 13123312212 is 21221332131.

13123312212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 557464 + ... + 580527.

Almost surely, 2^13123312212 is an apocalyptic number.

13123312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13123312212 is an abundant number, since it is smaller than the sum of its proper divisors (18517417356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123312212 is a wasteful number, since it uses less digits than its factorization.

13123312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138060 (or 1138027 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 13123312212 its reverse (21221332131), we get a palindrome (34344644343).

The spelling of 13123312212 in words is "thirteen billion, one hundred twenty-three million, three hundred twelve thousand, two hundred twelve".