13111223210344 has 16 divisors (see below), whose sum is σ = 28095478308000. Its totient is φ = 5619095661552.

The previous prime is 13111223210321. The next prime is 13111223210359. The reversal of 13111223210344 is 44301232211131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117064492894 + ... + 117064493005.

It is an arithmetic number, because the mean of its divisors is an integer number (1755967394250).

Almost surely, 2^{13111223210344} is an apocalyptic number.

13111223210344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13111223210344 is an abundant number, since it is smaller than the sum of its proper divisors (14984255097656).

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

13111223210344 is a wasteful number, since it uses less digits than its factorization.

13111223210344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234128985912 (or 234128985908 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 13111223210344 its reverse (44301232211131), we get a palindrome (57412455421475).

The spelling of 13111223210344 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty-three million, two hundred ten thousand, three hundred forty-four".