13032320220 has 72 divisors (see below), whose sum is σ = 39579854496. Its totient is φ = 3471023232.

The previous prime is 13032320219. The next prime is 13032320221. The reversal of 13032320220 is 2202323031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13032320219) and next prime (13032320221).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13032320193 and 13032320202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13032320221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104154 + ... + 192126.

Almost surely, 2^13032320220 is an apocalyptic number.

13032320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13032320220 is an abundant number, since it is smaller than the sum of its proper divisors (26547534276).

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

13032320220 is a wasteful number, since it uses less digits than its factorization.

13032320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88811 (or 88806 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 13032320220 its reverse (2202323031), we get a palindrome (15234643251).

The spelling of 13032320220 in words is "thirteen billion, thirty-two million, three hundred twenty thousand, two hundred twenty".