13200004020 has 48 divisors (see below), whose sum is σ = 42240014208. Its totient is φ = 3017143680.

The previous prime is 13200003983. The next prime is 13200004033. The reversal of 13200004020 is 2040000231.

It is a super-2 number, since 2×13200004020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13200003987 and 13200004005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15713871 + ... + 15714710.

It is an arithmetic number, because the mean of its divisors is an integer number (880000296).

Almost surely, 2^13200004020 is an apocalyptic number.

13200004020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13200004020 is an abundant number, since it is smaller than the sum of its proper divisors (29040010188).

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

13200004020 is a wasteful number, since it uses less digits than its factorization.

13200004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31428600 (or 31428598 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 13200004020 its reverse (2040000231), we get a palindrome (15240004251).

The spelling of 13200004020 in words is "thirteen billion, two hundred million, four thousand, twenty".