13311123312 has 20 divisors (see below), whose sum is σ = 34387068680. Its totient is φ = 4437041088.

The previous prime is 13311123311. The next prime is 13311123313. The reversal of 13311123312 is 21332111331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13311123311) and next prime (13311123313).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311123311) 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, 138657487 + ... + 138657582.

It is an arithmetic number, because the mean of its divisors is an integer number (1719353434).

Almost surely, 2^13311123312 is an apocalyptic number.

13311123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13311123312 is an abundant number, since it is smaller than the sum of its proper divisors (21075945368).

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

13311123312 is a wasteful number, since it uses less digits than its factorization.

13311123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277315080 (or 277315074 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

Adding to 13311123312 its reverse (21332111331), we get a palindrome (34643234643).

The spelling of 13311123312 in words is "thirteen billion, three hundred eleven million, one hundred twenty-three thousand, three hundred twelve".