13111220322232 has 8 divisors (see below), whose sum is σ = 24583538104200. Its totient is φ = 6555610161112.

The previous prime is 13111220322191. The next prime is 13111220322241. The reversal of 13111220322232 is 23222302211131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13111220322197 and 13111220322206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 819451270132 + ... + 819451270147.

It is an arithmetic number, because the mean of its divisors is an integer number (3072942263025).

Almost surely, 2^{13111220322232} is an apocalyptic number.

It is an amenable number.

13111220322232 is a deficient number, since it is larger than the sum of its proper divisors (11472317781968).

13111220322232 is a wasteful number, since it uses less digits than its factorization.

13111220322232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638902540285 (or 1638902540281 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13111220322232 its reverse (23222302211131), we get a palindrome (36333522533363).

The spelling of 13111220322232 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty million, three hundred twenty-two thousand, two hundred thirty-two".