13310321020 has 48 divisors (see below), whose sum is σ = 29641707648. Its totient is φ = 5003187200.

The previous prime is 13310320997. The next prime is 13310321021. The reversal of 13310321020 is 2012301331.

It is a junction number, because it is equal to n+sod(n) for n = 13310320985 and 13310321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13310321021) 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, 192045 + ... + 251995.

It is an arithmetic number, because the mean of its divisors is an integer number (617535576).

Almost surely, 2^13310321020 is an apocalyptic number.

13310321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13310321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14820853824).

13310321020 is an abundant number, since it is smaller than the sum of its proper divisors (16331386628).

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

13310321020 is a wasteful number, since it uses less digits than its factorization.

13310321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60630 (or 60628 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13310321020 its reverse (2012301331), we get a palindrome (15322622351).

The spelling of 13310321020 in words is "thirteen billion, three hundred ten million, three hundred twenty-one thousand, twenty".