13111223112312 has 96 divisors (see below), whose sum is σ = 35501105159280. Its totient is φ = 4033346703360.

The previous prime is 13111223112311. The next prime is 13111223112343. The reversal of 13111223112312 is 21321132211131.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 (13111223112311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18459112 + ... + 19156232.

Almost surely, 2^{13111223112312} is an apocalyptic number.

13111223112312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111223112312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17750552579640).

13111223112312 is an abundant number, since it is smaller than the sum of its proper divisors (22389882046968).

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

13111223112312 is a wasteful number, since it uses less digits than its factorization.

13111223112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701793 (or 701776 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

Adding to 13111223112312 its reverse (21321132211131), we get a palindrome (34432355323443).

The spelling of 13111223112312 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty-three million, one hundred twelve thousand, three hundred twelve".