13002303220 has 24 divisors (see below), whose sum is σ = 27488097000. Its totient is φ = 5166014592.

The previous prime is 13002303187. The next prime is 13002303233. The reversal of 13002303220 is 2230320031.

It can be written as a sum of positive squares in 4 ways, for example, as 374544 + 13001928676 = 612^2 + 114026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13002303194 and 13002303203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178615 + ... + 2184574.

It is an arithmetic number, because the mean of its divisors is an integer number (1145337375).

Almost surely, 2^13002303220 is an apocalyptic number.

13002303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13002303220 is an abundant number, since it is smaller than the sum of its proper divisors (14485793780).

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

13002303220 is a wasteful number, since it uses less digits than its factorization.

13002303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363347 (or 4363345 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 13002303220 its reverse (2230320031), we get a palindrome (15232623251).

The spelling of 13002303220 in words is "thirteen billion, two million, three hundred three thousand, two hundred twenty".