13111133232 has 40 divisors (see below), whose sum is σ = 33876553984. Its totient is φ = 4369587264.

The previous prime is 13111133221. The next prime is 13111133237. The reversal of 13111133232 is 23233111131.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13111133199 and 13111133208.

It is not an unprimeable number, because it can be changed into a prime (13111133237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282933 + ... + 325995.

Almost surely, 2^13111133232 is an apocalyptic number.

13111133232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13111133232 is an abundant number, since it is smaller than the sum of its proper divisors (20765420752).

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

13111133232 is a wasteful number, since it uses less digits than its factorization.

13111133232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49417 (or 49411 counting only the distinct ones).

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

Adding to 13111133232 its reverse (23233111131), we get a palindrome (36344244363).

The spelling of 13111133232 in words is "thirteen billion, one hundred eleven million, one hundred thirty-three thousand, two hundred thirty-two".