13231110522 has 64 divisors (see below), whose sum is σ = 31862476800. Its totient is φ = 3578178240.

The previous prime is 13231110517. The next prime is 13231110583. The reversal of 13231110522 is 22501113231.

13231110522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13231110522² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 975604 + ... + 989072.

It is an arithmetic number, because the mean of its divisors is an integer number (497851200).

Almost surely, 2^13231110522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231110522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15931238400).

13231110522 is an abundant number, since it is smaller than the sum of its proper divisors (18631366278).

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

13231110522 is a wasteful number, since it uses less digits than its factorization.

13231110522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14731.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 13231110522 its reverse (22501113231), we get a palindrome (35732223753).

It can be divided in two parts, 13231 and 110522, that added together give a triangular number (123753 = T₄₉₇).

The spelling of 13231110522 in words is "thirteen billion, two hundred thirty-one million, one hundred ten thousand, five hundred twenty-two".