13031221330288 has 80 divisors (see below), whose sum is σ = 29494352240640. Its totient is φ = 5461240209408.

The previous prime is 13031221330229. The next prime is 13031221330289. The reversal of 13031221330288 is 88203312213031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031221330289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4995873 + ... + 7142911.

It is an arithmetic number, because the mean of its divisors is an integer number (368679403008).

Almost surely, 2^{13031221330288} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13031221330288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14747176120320).

13031221330288 is an abundant number, since it is smaller than the sum of its proper divisors (16463130910352).

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

13031221330288 is a wasteful number, since it uses less digits than its factorization.

13031221330288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148254 (or 2148248 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 13031221330288 in words is "thirteen trillion, thirty-one billion, two hundred twenty-one million, three hundred thirty thousand, two hundred eighty-eight".