13022000128 has 44 divisors (see below), whose sum is σ = 26299847812. Its totient is φ = 6443827200.

The previous prime is 13022000087. The next prime is 13022000129. The reversal of 13022000128 is 82100022031.

It can be written as a sum of positive squares in 2 ways, for example, as 5771137024 + 7250863104 = 75968^2 + 85152^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022000129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33778 + ... + 164878.

Almost surely, 2^13022000128 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 13022000128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13149923906).

13022000128 is an abundant number, since it is smaller than the sum of its proper divisors (13277847684).

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

13022000128 is an equidigital number, since it uses as much as digits as its factorization.

13022000128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131218 (or 131200 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 13022000128 its reverse (82100022031), we get a palindrome (95122022159).

The spelling of 13022000128 in words is "thirteen billion, twenty-two million, one hundred twenty-eight", and thus it is an aban number.