13111310232 has 96 divisors (see below), whose sum is σ = 37067843280. Its totient is φ = 4182554880.

The previous prime is 13111310203. The next prime is 13111310237. The reversal of 13111310232 is 23201311131.

13111310232 is a `hidden beast` number, since 13 + 111 + 310 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111310237) 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, 122163 + ... + 202845.

Almost surely, 2^13111310232 is an apocalyptic number.

13111310232 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 13111310232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18533921640).

13111310232 is an abundant number, since it is smaller than the sum of its proper divisors (23956533048).

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

13111310232 is a wasteful number, since it uses less digits than its factorization.

13111310232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80793 (or 80786 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13111310232 its reverse (23201311131), we get a palindrome (36312621363).

The spelling of 13111310232 in words is "thirteen billion, one hundred eleven million, three hundred ten thousand, two hundred thirty-two".